Home / 38,340.24-52,909.92-21,570

Finding the Fourth Proportional to 38,340.24, 52,909.92 and 21,570

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Solution

The fourth proportional to 38,340.24, 52,909.92 and 21,570 is: 29,766.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.24 : 52,909.92 = 21,570 : x
  2. Step 2: Convert to fraction form
    38,340.24/52,909.92 = 21,570/x
  3. Step 3: Cross multiply
    38,340.24x = 52,909.92 × 21,570
  4. Step 4: Simplify right side
    38,340.24x = 1,141,266,974.40
  5. Step 5: Solve for x
    x = 1,141,266,974.40/38,340.24
  6. Step 6: Final answer
    x = 29,766.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.