Home / 20,689.74-31,010.31-9,572.96

Finding the Fourth Proportional to 20,689.74, 31,010.31 and 9,572.96

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Solution

The fourth proportional to 20,689.74, 31,010.31 and 9,572.96 is: 14,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.74 : 31,010.31 = 9,572.96 : x
  2. Step 2: Convert to fraction form
    20,689.74/31,010.31 = 9,572.96/x
  3. Step 3: Cross multiply
    20,689.74x = 31,010.31 × 9,572.96
  4. Step 4: Simplify right side
    20,689.74x = 296,860,302.17
  5. Step 5: Solve for x
    x = 296,860,302.17/20,689.74
  6. Step 6: Final answer
    x = 14,348.19

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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.