Home / 31,158.96-42,997.66-17,011.48

Finding the Fourth Proportional to 31,158.96, 42,997.66 and 17,011.48

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Solution

The fourth proportional to 31,158.96, 42,997.66 and 17,011.48 is: 23,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,158.96 : 42,997.66 = 17,011.48 : x
  2. Step 2: Convert to fraction form
    31,158.96/42,997.66 = 17,011.48/x
  3. Step 3: Cross multiply
    31,158.96x = 42,997.66 × 17,011.48
  4. Step 4: Simplify right side
    31,158.96x = 731,453,833.14
  5. Step 5: Solve for x
    x = 731,453,833.14/31,158.96
  6. Step 6: Final answer
    x = 23,474.91

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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.