Home / 25,113.92-34,655.66-13,781.12

Finding the Fourth Proportional to 25,113.92, 34,655.66 and 13,781.12

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Solution

The fourth proportional to 25,113.92, 34,655.66 and 13,781.12 is: 19,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,113.92 : 34,655.66 = 13,781.12 : x
  2. Step 2: Convert to fraction form
    25,113.92/34,655.66 = 13,781.12/x
  3. Step 3: Cross multiply
    25,113.92x = 34,655.66 × 13,781.12
  4. Step 4: Simplify right side
    25,113.92x = 477,593,809.14
  5. Step 5: Solve for x
    x = 477,593,809.14/25,113.92
  6. Step 6: Final answer
    x = 19,017.10

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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.