Home / 25,728.55-38,611.28-10,947.85

Finding the Fourth Proportional to 25,728.55, 38,611.28 and 10,947.85

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Solution

The fourth proportional to 25,728.55, 38,611.28 and 10,947.85 is: 16,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.55 : 38,611.28 = 10,947.85 : x
  2. Step 2: Convert to fraction form
    25,728.55/38,611.28 = 10,947.85/x
  3. Step 3: Cross multiply
    25,728.55x = 38,611.28 × 10,947.85
  4. Step 4: Simplify right side
    25,728.55x = 422,710,432.59
  5. Step 5: Solve for x
    x = 422,710,432.59/25,728.55
  6. Step 6: Final answer
    x = 16,429.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.