Home / 22,981.07-31,713.90-12,909.52

Finding the Fourth Proportional to 22,981.07, 31,713.90 and 12,909.52

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Solution

The fourth proportional to 22,981.07, 31,713.90 and 12,909.52 is: 17,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.07 : 31,713.90 = 12,909.52 : x
  2. Step 2: Convert to fraction form
    22,981.07/31,713.90 = 12,909.52/x
  3. Step 3: Cross multiply
    22,981.07x = 31,713.90 × 12,909.52
  4. Step 4: Simplify right side
    22,981.07x = 409,411,226.33
  5. Step 5: Solve for x
    x = 409,411,226.33/22,981.07
  6. Step 6: Final answer
    x = 17,815.15

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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.