Home / 21,127,688.88-31,854,469.88-20,996,534.49

Finding the Fourth Proportional to 21,127,688.88, 31,854,469.88 and 20,996,534.49

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Solution

The fourth proportional to 21,127,688.88, 31,854,469.88 and 20,996,534.49 is: 31,656,726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127,688.88 : 31,854,469.88 = 20,996,534.49 : x
  2. Step 2: Convert to fraction form
    21,127,688.88/31,854,469.88 = 20,996,534.49/x
  3. Step 3: Cross multiply
    21,127,688.88x = 31,854,469.88 × 20,996,534.49
  4. Step 4: Simplify right side
    21,127,688.88x = 668,833,475,391,103.38
  5. Step 5: Solve for x
    x = 668,833,475,391,103.38/21,127,688.88
  6. Step 6: Final answer
    x = 31,656,726.83

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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.