Home / 21,156,228.20-31,734,342.30-13,597,956.20

Finding the Fourth Proportional to 21,156,228.20, 31,734,342.30 and 13,597,956.20

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Solution

The fourth proportional to 21,156,228.20, 31,734,342.30 and 13,597,956.20 is: 20,396,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156,228.20 : 31,734,342.30 = 13,597,956.20 : x
  2. Step 2: Convert to fraction form
    21,156,228.20/31,734,342.30 = 13,597,956.20/x
  3. Step 3: Cross multiply
    21,156,228.20x = 31,734,342.30 × 13,597,956.20
  4. Step 4: Simplify right side
    21,156,228.20x = 431,522,196,631,207.25
  5. Step 5: Solve for x
    x = 431,522,196,631,207.25/21,156,228.20
  6. Step 6: Final answer
    x = 20,396,934.30

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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.