Home / 31,174.40-43,010-17,742.29

Finding the Fourth Proportional to 31,174.40, 43,010 and 17,742.29

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Solution

The fourth proportional to 31,174.40, 43,010 and 17,742.29 is: 24,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,174.40 : 43,010 = 17,742.29 : x
  2. Step 2: Convert to fraction form
    31,174.40/43,010 = 17,742.29/x
  3. Step 3: Cross multiply
    31,174.40x = 43,010 × 17,742.29
  4. Step 4: Simplify right side
    31,174.40x = 763,095,892.90
  5. Step 5: Solve for x
    x = 763,095,892.90/31,174.40
  6. Step 6: Final answer
    x = 24,478.29

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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.