Home / 25,815.16-35,626.98-15,206.88

Finding the Fourth Proportional to 25,815.16, 35,626.98 and 15,206.88

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Solution

The fourth proportional to 25,815.16, 35,626.98 and 15,206.88 is: 20,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.16 : 35,626.98 = 15,206.88 : x
  2. Step 2: Convert to fraction form
    25,815.16/35,626.98 = 15,206.88/x
  3. Step 3: Cross multiply
    25,815.16x = 35,626.98 × 15,206.88
  4. Step 4: Simplify right side
    25,815.16x = 541,775,209.62
  5. Step 5: Solve for x
    x = 541,775,209.62/25,815.16
  6. Step 6: Final answer
    x = 20,986.71

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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.