Home / 28,611.38-42,928.88-15,448.25

Finding the Fourth Proportional to 28,611.38, 42,928.88 and 15,448.25

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Solution

The fourth proportional to 28,611.38, 42,928.88 and 15,448.25 is: 23,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.38 : 42,928.88 = 15,448.25 : x
  2. Step 2: Convert to fraction form
    28,611.38/42,928.88 = 15,448.25/x
  3. Step 3: Cross multiply
    28,611.38x = 42,928.88 × 15,448.25
  4. Step 4: Simplify right side
    28,611.38x = 663,175,778.57
  5. Step 5: Solve for x
    x = 663,175,778.57/28,611.38
  6. Step 6: Final answer
    x = 23,178.75

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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.