Home / 38,772.90-58,167.99-21,238.02

Finding the Fourth Proportional to 38,772.90, 58,167.99 and 21,238.02

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Solution

The fourth proportional to 38,772.90, 58,167.99 and 21,238.02 is: 31,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,772.90 : 58,167.99 = 21,238.02 : x
  2. Step 2: Convert to fraction form
    38,772.90/58,167.99 = 21,238.02/x
  3. Step 3: Cross multiply
    38,772.90x = 58,167.99 × 21,238.02
  4. Step 4: Simplify right side
    38,772.90x = 1,235,372,934.98
  5. Step 5: Solve for x
    x = 1,235,372,934.98/38,772.90
  6. Step 6: Final answer
    x = 31,861.76

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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.