Home / 34,995.11-48,300.78-20,649.61

Finding the Fourth Proportional to 34,995.11, 48,300.78 and 20,649.61

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Solution

The fourth proportional to 34,995.11, 48,300.78 and 20,649.61 is: 28,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,995.11 : 48,300.78 = 20,649.61 : x
  2. Step 2: Convert to fraction form
    34,995.11/48,300.78 = 20,649.61/x
  3. Step 3: Cross multiply
    34,995.11x = 48,300.78 × 20,649.61
  4. Step 4: Simplify right side
    34,995.11x = 997,392,269.70
  5. Step 5: Solve for x
    x = 997,392,269.70/34,995.11
  6. Step 6: Final answer
    x = 28,500.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.