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Finding the Fourth Proportional to 18,192, 27,079.68 and 17,342.40

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Solution

The fourth proportional to 18,192, 27,079.68 and 17,342.40 is: 25,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192 : 27,079.68 = 17,342.40 : x
  2. Step 2: Convert to fraction form
    18,192/27,079.68 = 17,342.40/x
  3. Step 3: Cross multiply
    18,192x = 27,079.68 × 17,342.40
  4. Step 4: Simplify right side
    18,192x = 469,626,642.43
  5. Step 5: Solve for x
    x = 469,626,642.43/18,192
  6. Step 6: Final answer
    x = 25,815.01

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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.