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Finding the Fourth Proportional to 23,388.40, 35,082.60 and 15,515.20

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Solution

The fourth proportional to 23,388.40, 35,082.60 and 15,515.20 is: 23,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,388.40 : 35,082.60 = 15,515.20 : x
  2. Step 2: Convert to fraction form
    23,388.40/35,082.60 = 15,515.20/x
  3. Step 3: Cross multiply
    23,388.40x = 35,082.60 × 15,515.20
  4. Step 4: Simplify right side
    23,388.40x = 544,313,555.52
  5. Step 5: Solve for x
    x = 544,313,555.52/23,388.40
  6. Step 6: Final answer
    x = 23,272.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.