Home / 28,414.40-42,626.36-8,688.33

Finding the Fourth Proportional to 28,414.40, 42,626.36 and 8,688.33

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Solution

The fourth proportional to 28,414.40, 42,626.36 and 8,688.33 is: 13,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.40 : 42,626.36 = 8,688.33 : x
  2. Step 2: Convert to fraction form
    28,414.40/42,626.36 = 8,688.33/x
  3. Step 3: Cross multiply
    28,414.40x = 42,626.36 × 8,688.33
  4. Step 4: Simplify right side
    28,414.40x = 370,351,882.38
  5. Step 5: Solve for x
    x = 370,351,882.38/28,414.40
  6. Step 6: Final answer
    x = 13,033.95

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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.