Home / 21,138,092.70-31,707,139.05-17,551,023.90

Finding the Fourth Proportional to 21,138,092.70, 31,707,139.05 and 17,551,023.90

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Solution

The fourth proportional to 21,138,092.70, 31,707,139.05 and 17,551,023.90 is: 26,326,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,092.70 : 31,707,139.05 = 17,551,023.90 : x
  2. Step 2: Convert to fraction form
    21,138,092.70/31,707,139.05 = 17,551,023.90/x
  3. Step 3: Cross multiply
    21,138,092.70x = 31,707,139.05 × 17,551,023.90
  4. Step 4: Simplify right side
    21,138,092.70x = 556,492,755,267,173.25
  5. Step 5: Solve for x
    x = 556,492,755,267,173.25/21,138,092.70
  6. Step 6: Final answer
    x = 26,326,535.85

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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.