Home / 26,431.13-36,478.20-15,253.13

Finding the Fourth Proportional to 26,431.13, 36,478.20 and 15,253.13

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Solution

The fourth proportional to 26,431.13, 36,478.20 and 15,253.13 is: 21,051.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.13 : 36,478.20 = 15,253.13 : x
  2. Step 2: Convert to fraction form
    26,431.13/36,478.20 = 15,253.13/x
  3. Step 3: Cross multiply
    26,431.13x = 36,478.20 × 15,253.13
  4. Step 4: Simplify right side
    26,431.13x = 556,406,544.38
  5. Step 5: Solve for x
    x = 556,406,544.38/26,431.13
  6. Step 6: Final answer
    x = 21,051.19

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Half scale
Find fourth proportional to 52,862.25, 72,956.40 and 30,506.25
Double scale
Find fourth proportional to 26,432.13, 36,479.58 and 15,254.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.