Home / 31,157.09-42,997.68-17,010.84

Finding the Fourth Proportional to 31,157.09, 42,997.68 and 17,010.84

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Solution

The fourth proportional to 31,157.09, 42,997.68 and 17,010.84 is: 23,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.09 : 42,997.68 = 17,010.84 : x
  2. Step 2: Convert to fraction form
    31,157.09/42,997.68 = 17,010.84/x
  3. Step 3: Cross multiply
    31,157.09x = 42,997.68 × 17,010.84
  4. Step 4: Simplify right side
    31,157.09x = 731,426,654.85
  5. Step 5: Solve for x
    x = 731,426,654.85/31,157.09
  6. Step 6: Final answer
    x = 23,475.45

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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.