Home / 31,159.27-42,997.79-17,012.08

Finding the Fourth Proportional to 31,159.27, 42,997.79 and 17,012.08

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Solution

The fourth proportional to 31,159.27, 42,997.79 and 17,012.08 is: 23,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.27 : 42,997.79 = 17,012.08 : x
  2. Step 2: Convert to fraction form
    31,159.27/42,997.79 = 17,012.08/x
  3. Step 3: Cross multiply
    31,159.27x = 42,997.79 × 17,012.08
  4. Step 4: Simplify right side
    31,159.27x = 731,481,543.25
  5. Step 5: Solve for x
    x = 731,481,543.25/31,159.27
  6. Step 6: Final answer
    x = 23,475.57

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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.