Home / 39,443.25-54,432.90-21,539.46

Finding the Fourth Proportional to 39,443.25, 54,432.90 and 21,539.46

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Solution

The fourth proportional to 39,443.25, 54,432.90 and 21,539.46 is: 29,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.25 : 54,432.90 = 21,539.46 : x
  2. Step 2: Convert to fraction form
    39,443.25/54,432.90 = 21,539.46/x
  3. Step 3: Cross multiply
    39,443.25x = 54,432.90 × 21,539.46
  4. Step 4: Simplify right side
    39,443.25x = 1,172,455,272.23
  5. Step 5: Solve for x
    x = 1,172,455,272.23/39,443.25
  6. Step 6: Final answer
    x = 29,725.12

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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.