Home / 21,304,209.87-31,905,589.13-13,604,003.45

Finding the Fourth Proportional to 21,304,209.87, 31,905,589.13 and 13,604,003.45

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Solution

The fourth proportional to 21,304,209.87, 31,905,589.13 and 13,604,003.45 is: 20,373,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,209.87 : 31,905,589.13 = 13,604,003.45 : x
  2. Step 2: Convert to fraction form
    21,304,209.87/31,905,589.13 = 13,604,003.45/x
  3. Step 3: Cross multiply
    21,304,209.87x = 31,905,589.13 × 13,604,003.45
  4. Step 4: Simplify right side
    21,304,209.87x = 434,043,744,371,254.56
  5. Step 5: Solve for x
    x = 434,043,744,371,254.56/21,304,209.87
  6. Step 6: Final answer
    x = 20,373,613.81

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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.