Home / 39,231.22-54,140.14-21,327.44

Finding the Fourth Proportional to 39,231.22, 54,140.14 and 21,327.44

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Solution

The fourth proportional to 39,231.22, 54,140.14 and 21,327.44 is: 29,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,231.22 : 54,140.14 = 21,327.44 : x
  2. Step 2: Convert to fraction form
    39,231.22/54,140.14 = 21,327.44/x
  3. Step 3: Cross multiply
    39,231.22x = 54,140.14 × 21,327.44
  4. Step 4: Simplify right side
    39,231.22x = 1,154,670,587.44
  5. Step 5: Solve for x
    x = 1,154,670,587.44/39,231.22
  6. Step 6: Final answer
    x = 29,432.44

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Half scale
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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.