Home / 39,158.70-54,037.17-21,253.56

Finding the Fourth Proportional to 39,158.70, 54,037.17 and 21,253.56

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Solution

The fourth proportional to 39,158.70, 54,037.17 and 21,253.56 is: 29,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158.70 : 54,037.17 = 21,253.56 : x
  2. Step 2: Convert to fraction form
    39,158.70/54,037.17 = 21,253.56/x
  3. Step 3: Cross multiply
    39,158.70x = 54,037.17 × 21,253.56
  4. Step 4: Simplify right side
    39,158.70x = 1,148,482,234.83
  5. Step 5: Solve for x
    x = 1,148,482,234.83/39,158.70
  6. Step 6: Final answer
    x = 29,328.92

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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.