Home / 42,339.06-63,457.65-15,663.78

Finding the Fourth Proportional to 42,339.06, 63,457.65 and 15,663.78

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Solution

The fourth proportional to 42,339.06, 63,457.65 and 15,663.78 is: 23,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,339.06 : 63,457.65 = 15,663.78 : x
  2. Step 2: Convert to fraction form
    42,339.06/63,457.65 = 15,663.78/x
  3. Step 3: Cross multiply
    42,339.06x = 63,457.65 × 15,663.78
  4. Step 4: Simplify right side
    42,339.06x = 993,986,668.92
  5. Step 5: Solve for x
    x = 993,986,668.92/42,339.06
  6. Step 6: Final answer
    x = 23,476.82

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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.