Home / 25,031.52-34,545.86-13,857.12

Finding the Fourth Proportional to 25,031.52, 34,545.86 and 13,857.12

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Solution

The fourth proportional to 25,031.52, 34,545.86 and 13,857.12 is: 19,124.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,031.52 : 34,545.86 = 13,857.12 : x
  2. Step 2: Convert to fraction form
    25,031.52/34,545.86 = 13,857.12/x
  3. Step 3: Cross multiply
    25,031.52x = 34,545.86 × 13,857.12
  4. Step 4: Simplify right side
    25,031.52x = 478,706,127.52
  5. Step 5: Solve for x
    x = 478,706,127.52/25,031.52
  6. Step 6: Final answer
    x = 19,124.13

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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.