Home / 22,742.56-31,348.38-15,173.92

Finding the Fourth Proportional to 22,742.56, 31,348.38 and 15,173.92

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Solution

The fourth proportional to 22,742.56, 31,348.38 and 15,173.92 is: 20,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,742.56 : 31,348.38 = 15,173.92 : x
  2. Step 2: Convert to fraction form
    22,742.56/31,348.38 = 15,173.92/x
  3. Step 3: Cross multiply
    22,742.56x = 31,348.38 × 15,173.92
  4. Step 4: Simplify right side
    22,742.56x = 475,677,810.25
  5. Step 5: Solve for x
    x = 475,677,810.25/22,742.56
  6. Step 6: Final answer
    x = 20,915.75

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Double scale
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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.