Home / 17,715.12-24,432.30-12,929.68

Finding the Fourth Proportional to 17,715.12, 24,432.30 and 12,929.68

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Solution

The fourth proportional to 17,715.12, 24,432.30 and 12,929.68 is: 17,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.12 : 24,432.30 = 12,929.68 : x
  2. Step 2: Convert to fraction form
    17,715.12/24,432.30 = 12,929.68/x
  3. Step 3: Cross multiply
    17,715.12x = 24,432.30 × 12,929.68
  4. Step 4: Simplify right side
    17,715.12x = 315,901,820.66
  5. Step 5: Solve for x
    x = 315,901,820.66/17,715.12
  6. Step 6: Final answer
    x = 17,832.33

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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.