Home / 28,452.76-42,683.18-15,122.28

Finding the Fourth Proportional to 28,452.76, 42,683.18 and 15,122.28

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Solution

The fourth proportional to 28,452.76, 42,683.18 and 15,122.28 is: 22,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.76 : 42,683.18 = 15,122.28 : x
  2. Step 2: Convert to fraction form
    28,452.76/42,683.18 = 15,122.28/x
  3. Step 3: Cross multiply
    28,452.76x = 42,683.18 × 15,122.28
  4. Step 4: Simplify right side
    28,452.76x = 645,466,999.25
  5. Step 5: Solve for x
    x = 645,466,999.25/28,452.76
  6. Step 6: Final answer
    x = 22,685.57

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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.