Home / 22,920.12-34,312.08-12,500.28

Finding the Fourth Proportional to 22,920.12, 34,312.08 and 12,500.28

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Solution

The fourth proportional to 22,920.12, 34,312.08 and 12,500.28 is: 18,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.12 : 34,312.08 = 12,500.28 : x
  2. Step 2: Convert to fraction form
    22,920.12/34,312.08 = 12,500.28/x
  3. Step 3: Cross multiply
    22,920.12x = 34,312.08 × 12,500.28
  4. Step 4: Simplify right side
    22,920.12x = 428,910,607.38
  5. Step 5: Solve for x
    x = 428,910,607.38/22,920.12
  6. Step 6: Final answer
    x = 18,713.28

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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.