Home / 42,275.07-63,390.65-18,572.91

Finding the Fourth Proportional to 42,275.07, 63,390.65 and 18,572.91

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Solution

The fourth proportional to 42,275.07, 63,390.65 and 18,572.91 is: 27,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,275.07 : 63,390.65 = 18,572.91 : x
  2. Step 2: Convert to fraction form
    42,275.07/63,390.65 = 18,572.91/x
  3. Step 3: Cross multiply
    42,275.07x = 63,390.65 × 18,572.91
  4. Step 4: Simplify right side
    42,275.07x = 1,177,348,744.43
  5. Step 5: Solve for x
    x = 1,177,348,744.43/42,275.07
  6. Step 6: Final answer
    x = 27,849.72

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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.