Home / 25,520.11-35,209.62-15,445.33

Finding the Fourth Proportional to 25,520.11, 35,209.62 and 15,445.33

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Solution

The fourth proportional to 25,520.11, 35,209.62 and 15,445.33 is: 21,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.11 : 35,209.62 = 15,445.33 : x
  2. Step 2: Convert to fraction form
    25,520.11/35,209.62 = 15,445.33/x
  3. Step 3: Cross multiply
    25,520.11x = 35,209.62 × 15,445.33
  4. Step 4: Simplify right side
    25,520.11x = 543,824,112.05
  5. Step 5: Solve for x
    x = 543,824,112.05/25,520.11
  6. Step 6: Final answer
    x = 21,309.63

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Half scale
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Double scale
Find fourth proportional to 25,521.11, 35,211 and 15,446.33
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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.