Home / 28,099.12-42,148.26-8,377.76

Finding the Fourth Proportional to 28,099.12, 42,148.26 and 8,377.76

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Solution

The fourth proportional to 28,099.12, 42,148.26 and 8,377.76 is: 12,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.12 : 42,148.26 = 8,377.76 : x
  2. Step 2: Convert to fraction form
    28,099.12/42,148.26 = 8,377.76/x
  3. Step 3: Cross multiply
    28,099.12x = 42,148.26 × 8,377.76
  4. Step 4: Simplify right side
    28,099.12x = 353,108,006.70
  5. Step 5: Solve for x
    x = 353,108,006.70/28,099.12
  6. Step 6: Final answer
    x = 12,566.51

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Double scale
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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.