Home / 39,157.23-54,035.61-21,251.88

Finding the Fourth Proportional to 39,157.23, 54,035.61 and 21,251.88

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Solution

The fourth proportional to 39,157.23, 54,035.61 and 21,251.88 is: 29,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.23 : 54,035.61 = 21,251.88 : x
  2. Step 2: Convert to fraction form
    39,157.23/54,035.61 = 21,251.88/x
  3. Step 3: Cross multiply
    39,157.23x = 54,035.61 × 21,251.88
  4. Step 4: Simplify right side
    39,157.23x = 1,148,358,246.32
  5. Step 5: Solve for x
    x = 1,148,358,246.32/39,157.23
  6. Step 6: Final answer
    x = 29,326.85

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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.