Home / 21,445.45-32,132.60-15,174.38

Finding the Fourth Proportional to 21,445.45, 32,132.60 and 15,174.38

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Solution

The fourth proportional to 21,445.45, 32,132.60 and 15,174.38 is: 22,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.45 : 32,132.60 = 15,174.38 : x
  2. Step 2: Convert to fraction form
    21,445.45/32,132.60 = 15,174.38/x
  3. Step 3: Cross multiply
    21,445.45x = 32,132.60 × 15,174.38
  4. Step 4: Simplify right side
    21,445.45x = 487,592,122.13
  5. Step 5: Solve for x
    x = 487,592,122.13/21,445.45
  6. Step 6: Final answer
    x = 22,736.40

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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.