Home / 21,304,909.40-31,941,617.70-11,731,098.20

Finding the Fourth Proportional to 21,304,909.40, 31,941,617.70 and 11,731,098.20

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Solution

The fourth proportional to 21,304,909.40, 31,941,617.70 and 11,731,098.20 is: 17,587,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,909.40 : 31,941,617.70 = 11,731,098.20 : x
  2. Step 2: Convert to fraction form
    21,304,909.40/31,941,617.70 = 11,731,098.20/x
  3. Step 3: Cross multiply
    21,304,909.40x = 31,941,617.70 × 11,731,098.20
  4. Step 4: Simplify right side
    21,304,909.40x = 374,710,253,905,558.12
  5. Step 5: Solve for x
    x = 374,710,253,905,558.12/21,304,909.40
  6. Step 6: Final answer
    x = 17,587,976.88

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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.