Home / 31,645.08-47,472.89-12,935.16

Finding the Fourth Proportional to 31,645.08, 47,472.89 and 12,935.16

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Solution

The fourth proportional to 31,645.08, 47,472.89 and 12,935.16 is: 19,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.08 : 47,472.89 = 12,935.16 : x
  2. Step 2: Convert to fraction form
    31,645.08/47,472.89 = 12,935.16/x
  3. Step 3: Cross multiply
    31,645.08x = 47,472.89 × 12,935.16
  4. Step 4: Simplify right side
    31,645.08x = 614,069,363.14
  5. Step 5: Solve for x
    x = 614,069,363.14/31,645.08
  6. Step 6: Final answer
    x = 19,404.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.