Home / 23,780.28-32,805.90-15,399.48

Finding the Fourth Proportional to 23,780.28, 32,805.90 and 15,399.48

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Solution

The fourth proportional to 23,780.28, 32,805.90 and 15,399.48 is: 21,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,780.28 : 32,805.90 = 15,399.48 : x
  2. Step 2: Convert to fraction form
    23,780.28/32,805.90 = 15,399.48/x
  3. Step 3: Cross multiply
    23,780.28x = 32,805.90 × 15,399.48
  4. Step 4: Simplify right side
    23,780.28x = 505,193,800.93
  5. Step 5: Solve for x
    x = 505,193,800.93/23,780.28
  6. Step 6: Final answer
    x = 21,244.23

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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.