Home / 42,621.95-63,932.87-11,457.20

Finding the Fourth Proportional to 42,621.95, 63,932.87 and 11,457.20

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Solution

The fourth proportional to 42,621.95, 63,932.87 and 11,457.20 is: 17,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,621.95 : 63,932.87 = 11,457.20 : x
  2. Step 2: Convert to fraction form
    42,621.95/63,932.87 = 11,457.20/x
  3. Step 3: Cross multiply
    42,621.95x = 63,932.87 × 11,457.20
  4. Step 4: Simplify right side
    42,621.95x = 732,491,301.21
  5. Step 5: Solve for x
    x = 732,491,301.21/42,621.95
  6. Step 6: Final answer
    x = 17,185.78

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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.