Home / 39,168.73-54,054-21,264.88

Finding the Fourth Proportional to 39,168.73, 54,054 and 21,264.88

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Solution

The fourth proportional to 39,168.73, 54,054 and 21,264.88 is: 29,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.73 : 54,054 = 21,264.88 : x
  2. Step 2: Convert to fraction form
    39,168.73/54,054 = 21,264.88/x
  3. Step 3: Cross multiply
    39,168.73x = 54,054 × 21,264.88
  4. Step 4: Simplify right side
    39,168.73x = 1,149,451,823.52
  5. Step 5: Solve for x
    x = 1,149,451,823.52/39,168.73
  6. Step 6: Final answer
    x = 29,346.16

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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.