Home / 20,332.98-30,499.50-5,541.90

Finding the Fourth Proportional to 20,332.98, 30,499.50 and 5,541.90

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Solution

The fourth proportional to 20,332.98, 30,499.50 and 5,541.90 is: 8,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.98 : 30,499.50 = 5,541.90 : x
  2. Step 2: Convert to fraction form
    20,332.98/30,499.50 = 5,541.90/x
  3. Step 3: Cross multiply
    20,332.98x = 30,499.50 × 5,541.90
  4. Step 4: Simplify right side
    20,332.98x = 169,025,179.05
  5. Step 5: Solve for x
    x = 169,025,179.05/20,332.98
  6. Step 6: Final answer
    x = 8,312.86

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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.