Home / 15,543.20-23,314.80-13,728.80

Finding the Fourth Proportional to 15,543.20, 23,314.80 and 13,728.80

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Solution

The fourth proportional to 15,543.20, 23,314.80 and 13,728.80 is: 20,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.20 : 23,314.80 = 13,728.80 : x
  2. Step 2: Convert to fraction form
    15,543.20/23,314.80 = 13,728.80/x
  3. Step 3: Cross multiply
    15,543.20x = 23,314.80 × 13,728.80
  4. Step 4: Simplify right side
    15,543.20x = 320,084,226.24
  5. Step 5: Solve for x
    x = 320,084,226.24/15,543.20
  6. Step 6: Final answer
    x = 20,593.20

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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.