Home / 39,255.04-54,172.35-21,350.46

Finding the Fourth Proportional to 39,255.04, 54,172.35 and 21,350.46

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Solution

The fourth proportional to 39,255.04, 54,172.35 and 21,350.46 is: 29,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,255.04 : 54,172.35 = 21,350.46 : x
  2. Step 2: Convert to fraction form
    39,255.04/54,172.35 = 21,350.46/x
  3. Step 3: Cross multiply
    39,255.04x = 54,172.35 × 21,350.46
  4. Step 4: Simplify right side
    39,255.04x = 1,156,604,591.78
  5. Step 5: Solve for x
    x = 1,156,604,591.78/39,255.04
  6. Step 6: Final answer
    x = 29,463.85

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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.