Home / 27,942.12-38,543.22-17,188.80

Finding the Fourth Proportional to 27,942.12, 38,543.22 and 17,188.80

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Solution

The fourth proportional to 27,942.12, 38,543.22 and 17,188.80 is: 23,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.12 : 38,543.22 = 17,188.80 : x
  2. Step 2: Convert to fraction form
    27,942.12/38,543.22 = 17,188.80/x
  3. Step 3: Cross multiply
    27,942.12x = 38,543.22 × 17,188.80
  4. Step 4: Simplify right side
    27,942.12x = 662,511,699.94
  5. Step 5: Solve for x
    x = 662,511,699.94/27,942.12
  6. Step 6: Final answer
    x = 23,710.14

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1.5x scale

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.