Home / 28,541.49-42,812.23-8,819.61

Finding the Fourth Proportional to 28,541.49, 42,812.23 and 8,819.61

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Solution

The fourth proportional to 28,541.49, 42,812.23 and 8,819.61 is: 13,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.49 : 42,812.23 = 8,819.61 : x
  2. Step 2: Convert to fraction form
    28,541.49/42,812.23 = 8,819.61/x
  3. Step 3: Cross multiply
    28,541.49x = 42,812.23 × 8,819.61
  4. Step 4: Simplify right side
    28,541.49x = 377,587,171.83
  5. Step 5: Solve for x
    x = 377,587,171.83/28,541.49
  6. Step 6: Final answer
    x = 13,229.41

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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.