Home / 20,711.73-31,058.04-6,669.15

Finding the Fourth Proportional to 20,711.73, 31,058.04 and 6,669.15

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Solution

The fourth proportional to 20,711.73, 31,058.04 and 6,669.15 is: 10,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.73 : 31,058.04 = 6,669.15 : x
  2. Step 2: Convert to fraction form
    20,711.73/31,058.04 = 6,669.15/x
  3. Step 3: Cross multiply
    20,711.73x = 31,058.04 × 6,669.15
  4. Step 4: Simplify right side
    20,711.73x = 207,130,727.47
  5. Step 5: Solve for x
    x = 207,130,727.47/20,711.73
  6. Step 6: Final answer
    x = 10,000.65

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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.