Home / 42,538.08-63,803.28-12,962.88

Finding the Fourth Proportional to 42,538.08, 63,803.28 and 12,962.88

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Solution

The fourth proportional to 42,538.08, 63,803.28 and 12,962.88 is: 19,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.08 : 63,803.28 = 12,962.88 : x
  2. Step 2: Convert to fraction form
    42,538.08/63,803.28 = 12,962.88/x
  3. Step 3: Cross multiply
    42,538.08x = 63,803.28 × 12,962.88
  4. Step 4: Simplify right side
    42,538.08x = 827,074,262.25
  5. Step 5: Solve for x
    x = 827,074,262.25/42,538.08
  6. Step 6: Final answer
    x = 19,443.15

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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.