Home / 42,540.08-63,806.28-12,964.88

Finding the Fourth Proportional to 42,540.08, 63,806.28 and 12,964.88

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Solution

The fourth proportional to 42,540.08, 63,806.28 and 12,964.88 is: 19,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.08 : 63,806.28 = 12,964.88 : x
  2. Step 2: Convert to fraction form
    42,540.08/63,806.28 = 12,964.88/x
  3. Step 3: Cross multiply
    42,540.08x = 63,806.28 × 12,964.88
  4. Step 4: Simplify right side
    42,540.08x = 827,240,763.45
  5. Step 5: Solve for x
    x = 827,240,763.45/42,540.08
  6. Step 6: Final answer
    x = 19,446.15

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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.