Home / 42,929.76-64,403.28-15,229.92

Finding the Fourth Proportional to 42,929.76, 64,403.28 and 15,229.92

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Solution

The fourth proportional to 42,929.76, 64,403.28 and 15,229.92 is: 22,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,929.76 : 64,403.28 = 15,229.92 : x
  2. Step 2: Convert to fraction form
    42,929.76/64,403.28 = 15,229.92/x
  3. Step 3: Cross multiply
    42,929.76x = 64,403.28 × 15,229.92
  4. Step 4: Simplify right side
    42,929.76x = 980,856,802.14
  5. Step 5: Solve for x
    x = 980,856,802.14/42,929.76
  6. Step 6: Final answer
    x = 22,847.95

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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.