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Finding the Fourth Proportional to 38,892, 58,312.08 and 18,104.16

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Solution

The fourth proportional to 38,892, 58,312.08 and 18,104.16 is: 27,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,892 : 58,312.08 = 18,104.16 : x
  2. Step 2: Convert to fraction form
    38,892/58,312.08 = 18,104.16/x
  3. Step 3: Cross multiply
    38,892x = 58,312.08 × 18,104.16
  4. Step 4: Simplify right side
    38,892x = 1,055,691,226.25
  5. Step 5: Solve for x
    x = 1,055,691,226.25/38,892
  6. Step 6: Final answer
    x = 27,144.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.