Home / 22,615.40-31,233.66-17,638.76

Finding the Fourth Proportional to 22,615.40, 31,233.66 and 17,638.76

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Solution

The fourth proportional to 22,615.40, 31,233.66 and 17,638.76 is: 24,360.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.40 : 31,233.66 = 17,638.76 : x
  2. Step 2: Convert to fraction form
    22,615.40/31,233.66 = 17,638.76/x
  3. Step 3: Cross multiply
    22,615.40x = 31,233.66 × 17,638.76
  4. Step 4: Simplify right side
    22,615.40x = 550,923,032.66
  5. Step 5: Solve for x
    x = 550,923,032.66/22,615.40
  6. Step 6: Final answer
    x = 24,360.53

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Half scale
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Double scale
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Similar ratio
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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.