Home / 39,157.20-54,035.10-21,252.06

Finding the Fourth Proportional to 39,157.20, 54,035.10 and 21,252.06

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Solution

The fourth proportional to 39,157.20, 54,035.10 and 21,252.06 is: 29,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.20 : 54,035.10 = 21,252.06 : x
  2. Step 2: Convert to fraction form
    39,157.20/54,035.10 = 21,252.06/x
  3. Step 3: Cross multiply
    39,157.20x = 54,035.10 × 21,252.06
  4. Step 4: Simplify right side
    39,157.20x = 1,148,357,187.31
  5. Step 5: Solve for x
    x = 1,148,357,187.31/39,157.20
  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.