Home / 16,887.20-25,330.80-15,735.20

Finding the Fourth Proportional to 16,887.20, 25,330.80 and 15,735.20

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Solution

The fourth proportional to 16,887.20, 25,330.80 and 15,735.20 is: 23,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,887.20 : 25,330.80 = 15,735.20 : x
  2. Step 2: Convert to fraction form
    16,887.20/25,330.80 = 15,735.20/x
  3. Step 3: Cross multiply
    16,887.20x = 25,330.80 × 15,735.20
  4. Step 4: Simplify right side
    16,887.20x = 398,585,204.16
  5. Step 5: Solve for x
    x = 398,585,204.16/16,887.20
  6. Step 6: Final answer
    x = 23,602.80

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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.