Home / 20,566.66-30,838.33-8,079.87

Finding the Fourth Proportional to 20,566.66, 30,838.33 and 8,079.87

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Solution

The fourth proportional to 20,566.66, 30,838.33 and 8,079.87 is: 12,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.66 : 30,838.33 = 8,079.87 : x
  2. Step 2: Convert to fraction form
    20,566.66/30,838.33 = 8,079.87/x
  3. Step 3: Cross multiply
    20,566.66x = 30,838.33 × 8,079.87
  4. Step 4: Simplify right side
    20,566.66x = 249,169,697.42
  5. Step 5: Solve for x
    x = 249,169,697.42/20,566.66
  6. Step 6: Final answer
    x = 12,115.22

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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.