Home / 39,462.84-54,456.30-21,554.19

Finding the Fourth Proportional to 39,462.84, 54,456.30 and 21,554.19

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Solution

The fourth proportional to 39,462.84, 54,456.30 and 21,554.19 is: 29,743.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.84 : 54,456.30 = 21,554.19 : x
  2. Step 2: Convert to fraction form
    39,462.84/54,456.30 = 21,554.19/x
  3. Step 3: Cross multiply
    39,462.84x = 54,456.30 × 21,554.19
  4. Step 4: Simplify right side
    39,462.84x = 1,173,761,436.90
  5. Step 5: Solve for x
    x = 1,173,761,436.90/39,462.84
  6. Step 6: Final answer
    x = 29,743.46

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Double scale
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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.