Home / 39,171.68-54,058.08-21,267.89

Finding the Fourth Proportional to 39,171.68, 54,058.08 and 21,267.89

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Solution

The fourth proportional to 39,171.68, 54,058.08 and 21,267.89 is: 29,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.68 : 54,058.08 = 21,267.89 : x
  2. Step 2: Convert to fraction form
    39,171.68/54,058.08 = 21,267.89/x
  3. Step 3: Cross multiply
    39,171.68x = 54,058.08 × 21,267.89
  4. Step 4: Simplify right side
    39,171.68x = 1,149,701,463.27
  5. Step 5: Solve for x
    x = 1,149,701,463.27/39,171.68
  6. Step 6: Final answer
    x = 29,350.33

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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.