Home / 39,251.67-54,168.30-21,347.70

Finding the Fourth Proportional to 39,251.67, 54,168.30 and 21,347.70

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Solution

The fourth proportional to 39,251.67, 54,168.30 and 21,347.70 is: 29,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,251.67 : 54,168.30 = 21,347.70 : x
  2. Step 2: Convert to fraction form
    39,251.67/54,168.30 = 21,347.70/x
  3. Step 3: Cross multiply
    39,251.67x = 54,168.30 × 21,347.70
  4. Step 4: Simplify right side
    39,251.67x = 1,156,368,617.91
  5. Step 5: Solve for x
    x = 1,156,368,617.91/39,251.67
  6. Step 6: Final answer
    x = 29,460.37

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1.5x scale

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.