Home / 25,420.28-35,079.94-15,484.28

Finding the Fourth Proportional to 25,420.28, 35,079.94 and 15,484.28

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Solution

The fourth proportional to 25,420.28, 35,079.94 and 15,484.28 is: 21,368.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.28 : 35,079.94 = 15,484.28 : x
  2. Step 2: Convert to fraction form
    25,420.28/35,079.94 = 15,484.28/x
  3. Step 3: Cross multiply
    25,420.28x = 35,079.94 × 15,484.28
  4. Step 4: Simplify right side
    25,420.28x = 543,187,613.34
  5. Step 5: Solve for x
    x = 543,187,613.34/25,420.28
  6. Step 6: Final answer
    x = 21,368.28

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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.