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Finding the Fourth Proportional to 38,700, 58,052.75 and 15,326.44

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Solution

The fourth proportional to 38,700, 58,052.75 and 15,326.44 is: 22,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700 : 58,052.75 = 15,326.44 : x
  2. Step 2: Convert to fraction form
    38,700/58,052.75 = 15,326.44/x
  3. Step 3: Cross multiply
    38,700x = 58,052.75 × 15,326.44
  4. Step 4: Simplify right side
    38,700x = 889,741,767.95
  5. Step 5: Solve for x
    x = 889,741,767.95/38,700
  6. Step 6: Final answer
    x = 22,990.74

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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.