Home / 25,291.28-34,880.55-15,217.84

Finding the Fourth Proportional to 25,291.28, 34,880.55 and 15,217.84

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Solution

The fourth proportional to 25,291.28, 34,880.55 and 15,217.84 is: 20,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.28 : 34,880.55 = 15,217.84 : x
  2. Step 2: Convert to fraction form
    25,291.28/34,880.55 = 15,217.84/x
  3. Step 3: Cross multiply
    25,291.28x = 34,880.55 × 15,217.84
  4. Step 4: Simplify right side
    25,291.28x = 530,806,552.92
  5. Step 5: Solve for x
    x = 530,806,552.92/25,291.28
  6. Step 6: Final answer
    x = 20,987.73

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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.