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Finding the Fourth Proportional to 18,387.52, 27,398.66 and 17,494.88

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Solution

The fourth proportional to 18,387.52, 27,398.66 and 17,494.88 is: 26,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.52 : 27,398.66 = 17,494.88 : x
  2. Step 2: Convert to fraction form
    18,387.52/27,398.66 = 17,494.88/x
  3. Step 3: Cross multiply
    18,387.52x = 27,398.66 × 17,494.88
  4. Step 4: Simplify right side
    18,387.52x = 479,336,268.86
  5. Step 5: Solve for x
    x = 479,336,268.86/18,387.52
  6. Step 6: Final answer
    x = 26,068.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.