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Finding the Fourth Proportional to 39,892, 55,047.68 and 22,901.44

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Solution

The fourth proportional to 39,892, 55,047.68 and 22,901.44 is: 31,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,892 : 55,047.68 = 22,901.44 : x
  2. Step 2: Convert to fraction form
    39,892/55,047.68 = 22,901.44/x
  3. Step 3: Cross multiply
    39,892x = 55,047.68 × 22,901.44
  4. Step 4: Simplify right side
    39,892x = 1,260,671,140.66
  5. Step 5: Solve for x
    x = 1,260,671,140.66/39,892
  6. Step 6: Final answer
    x = 31,602.10

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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.