Home / 31,238.76-43,110.20-17,091.60

Finding the Fourth Proportional to 31,238.76, 43,110.20 and 17,091.60

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Solution

The fourth proportional to 31,238.76, 43,110.20 and 17,091.60 is: 23,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.76 : 43,110.20 = 17,091.60 : x
  2. Step 2: Convert to fraction form
    31,238.76/43,110.20 = 17,091.60/x
  3. Step 3: Cross multiply
    31,238.76x = 43,110.20 × 17,091.60
  4. Step 4: Simplify right side
    31,238.76x = 736,822,294.32
  5. Step 5: Solve for x
    x = 736,822,294.32/31,238.76
  6. Step 6: Final answer
    x = 23,586.80

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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.