Home / 19,891.32-29,781.30-10,636.92

Finding the Fourth Proportional to 19,891.32, 29,781.30 and 10,636.92

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Solution

The fourth proportional to 19,891.32, 29,781.30 and 10,636.92 is: 15,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.32 : 29,781.30 = 10,636.92 : x
  2. Step 2: Convert to fraction form
    19,891.32/29,781.30 = 10,636.92/x
  3. Step 3: Cross multiply
    19,891.32x = 29,781.30 × 10,636.92
  4. Step 4: Simplify right side
    19,891.32x = 316,781,305.60
  5. Step 5: Solve for x
    x = 316,781,305.60/19,891.32
  6. Step 6: Final answer
    x = 15,925.61

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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.