Home / 25,565.27-35,284.97-15,499.20

Finding the Fourth Proportional to 25,565.27, 35,284.97 and 15,499.20

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Solution

The fourth proportional to 25,565.27, 35,284.97 and 15,499.20 is: 21,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.27 : 35,284.97 = 15,499.20 : x
  2. Step 2: Convert to fraction form
    25,565.27/35,284.97 = 15,499.20/x
  3. Step 3: Cross multiply
    25,565.27x = 35,284.97 × 15,499.20
  4. Step 4: Simplify right side
    25,565.27x = 546,888,692.43
  5. Step 5: Solve for x
    x = 546,888,692.43/25,565.27
  6. Step 6: Final answer
    x = 21,391.86

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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.