Home / 20,712.24-31,058.78-6,669.66

Finding the Fourth Proportional to 20,712.24, 31,058.78 and 6,669.66

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Solution

The fourth proportional to 20,712.24, 31,058.78 and 6,669.66 is: 10,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.24 : 31,058.78 = 6,669.66 : x
  2. Step 2: Convert to fraction form
    20,712.24/31,058.78 = 6,669.66/x
  3. Step 3: Cross multiply
    20,712.24x = 31,058.78 × 6,669.66
  4. Step 4: Simplify right side
    20,712.24x = 207,151,502.61
  5. Step 5: Solve for x
    x = 207,151,502.61/20,712.24
  6. Step 6: Final answer
    x = 10,001.41

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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.