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Finding the Fourth Proportional to 15,499.20, 23,223.20 and 13,195.20

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Solution

The fourth proportional to 15,499.20, 23,223.20 and 13,195.20 is: 19,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.20 : 23,223.20 = 13,195.20 : x
  2. Step 2: Convert to fraction form
    15,499.20/23,223.20 = 13,195.20/x
  3. Step 3: Cross multiply
    15,499.20x = 23,223.20 × 13,195.20
  4. Step 4: Simplify right side
    15,499.20x = 306,434,768.64
  5. Step 5: Solve for x
    x = 306,434,768.64/15,499.20
  6. Step 6: Final answer
    x = 19,771.01

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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.