Home / 20,929.11-31,537.65-17,312.73

Finding the Fourth Proportional to 20,929.11, 31,537.65 and 17,312.73

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Solution

The fourth proportional to 20,929.11, 31,537.65 and 17,312.73 is: 26,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.11 : 31,537.65 = 17,312.73 : x
  2. Step 2: Convert to fraction form
    20,929.11/31,537.65 = 17,312.73/x
  3. Step 3: Cross multiply
    20,929.11x = 31,537.65 × 17,312.73
  4. Step 4: Simplify right side
    20,929.11x = 546,002,819.28
  5. Step 5: Solve for x
    x = 546,002,819.28/20,929.11
  6. Step 6: Final answer
    x = 26,088.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.