Home / 39,459.62-54,456.49-21,554.92

Finding the Fourth Proportional to 39,459.62, 54,456.49 and 21,554.92

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Solution

The fourth proportional to 39,459.62, 54,456.49 and 21,554.92 is: 29,747.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459.62 : 54,456.49 = 21,554.92 : x
  2. Step 2: Convert to fraction form
    39,459.62/54,456.49 = 21,554.92/x
  3. Step 3: Cross multiply
    39,459.62x = 54,456.49 × 21,554.92
  4. Step 4: Simplify right side
    39,459.62x = 1,173,805,380.45
  5. Step 5: Solve for x
    x = 1,173,805,380.45/39,459.62
  6. Step 6: Final answer
    x = 29,747.00

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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.