Home / 25,286.86-34,884.57-15,209.38

Finding the Fourth Proportional to 25,286.86, 34,884.57 and 15,209.38

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Solution

The fourth proportional to 25,286.86, 34,884.57 and 15,209.38 is: 20,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.86 : 34,884.57 = 15,209.38 : x
  2. Step 2: Convert to fraction form
    25,286.86/34,884.57 = 15,209.38/x
  3. Step 3: Cross multiply
    25,286.86x = 34,884.57 × 15,209.38
  4. Step 4: Simplify right side
    25,286.86x = 530,572,681.27
  5. Step 5: Solve for x
    x = 530,572,681.27/25,286.86
  6. Step 6: Final answer
    x = 20,982.15

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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.