Home / 30,560.67-42,173.31-17,131.89

Finding the Fourth Proportional to 30,560.67, 42,173.31 and 17,131.89

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Solution

The fourth proportional to 30,560.67, 42,173.31 and 17,131.89 is: 23,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.67 : 42,173.31 = 17,131.89 : x
  2. Step 2: Convert to fraction form
    30,560.67/42,173.31 = 17,131.89/x
  3. Step 3: Cross multiply
    30,560.67x = 42,173.31 × 17,131.89
  4. Step 4: Simplify right side
    30,560.67x = 722,508,507.86
  5. Step 5: Solve for x
    x = 722,508,507.86/30,560.67
  6. Step 6: Final answer
    x = 23,641.78

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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.