Home / 31,174.90-43,010.68-17,742.80

Finding the Fourth Proportional to 31,174.90, 43,010.68 and 17,742.80

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Solution

The fourth proportional to 31,174.90, 43,010.68 and 17,742.80 is: 24,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,174.90 : 43,010.68 = 17,742.80 : x
  2. Step 2: Convert to fraction form
    31,174.90/43,010.68 = 17,742.80/x
  3. Step 3: Cross multiply
    31,174.90x = 43,010.68 × 17,742.80
  4. Step 4: Simplify right side
    31,174.90x = 763,129,893.10
  5. Step 5: Solve for x
    x = 763,129,893.10/31,174.90
  6. Step 6: Final answer
    x = 24,478.98

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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.