Home / 42,865.75-64,288.29-16,553.71

Finding the Fourth Proportional to 42,865.75, 64,288.29 and 16,553.71

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Solution

The fourth proportional to 42,865.75, 64,288.29 and 16,553.71 is: 24,826.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,865.75 : 64,288.29 = 16,553.71 : x
  2. Step 2: Convert to fraction form
    42,865.75/64,288.29 = 16,553.71/x
  3. Step 3: Cross multiply
    42,865.75x = 64,288.29 × 16,553.71
  4. Step 4: Simplify right side
    42,865.75x = 1,064,209,387.61
  5. Step 5: Solve for x
    x = 1,064,209,387.61/42,865.75
  6. Step 6: Final answer
    x = 24,826.57

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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.