Home / 39,531.60-54,554.88-21,627.12

Finding the Fourth Proportional to 39,531.60, 54,554.88 and 21,627.12

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Solution

The fourth proportional to 39,531.60, 54,554.88 and 21,627.12 is: 29,846.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.60 : 54,554.88 = 21,627.12 : x
  2. Step 2: Convert to fraction form
    39,531.60/54,554.88 = 21,627.12/x
  3. Step 3: Cross multiply
    39,531.60x = 54,554.88 × 21,627.12
  4. Step 4: Simplify right side
    39,531.60x = 1,179,864,936.35
  5. Step 5: Solve for x
    x = 1,179,864,936.35/39,531.60
  6. Step 6: Final answer
    x = 29,846.12

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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.