Home / 28,199.66-38,915.92-15,452.59

Finding the Fourth Proportional to 28,199.66, 38,915.92 and 15,452.59

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Solution

The fourth proportional to 28,199.66, 38,915.92 and 15,452.59 is: 21,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.66 : 38,915.92 = 15,452.59 : x
  2. Step 2: Convert to fraction form
    28,199.66/38,915.92 = 15,452.59/x
  3. Step 3: Cross multiply
    28,199.66x = 38,915.92 × 15,452.59
  4. Step 4: Simplify right side
    28,199.66x = 601,351,756.23
  5. Step 5: Solve for x
    x = 601,351,756.23/28,199.66
  6. Step 6: Final answer
    x = 21,324.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.