Home / 22,920.68-34,385.88-7,125.32

Finding the Fourth Proportional to 22,920.68, 34,385.88 and 7,125.32

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Solution

The fourth proportional to 22,920.68, 34,385.88 and 7,125.32 is: 10,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.68 : 34,385.88 = 7,125.32 : x
  2. Step 2: Convert to fraction form
    22,920.68/34,385.88 = 7,125.32/x
  3. Step 3: Cross multiply
    22,920.68x = 34,385.88 × 7,125.32
  4. Step 4: Simplify right side
    22,920.68x = 245,010,398.48
  5. Step 5: Solve for x
    x = 245,010,398.48/22,920.68
  6. Step 6: Final answer
    x = 10,689.49

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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.