Home / 20,686.92-31,030.02-5,895.96

Finding the Fourth Proportional to 20,686.92, 31,030.02 and 5,895.96

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Solution

The fourth proportional to 20,686.92, 31,030.02 and 5,895.96 is: 8,843.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.92 : 31,030.02 = 5,895.96 : x
  2. Step 2: Convert to fraction form
    20,686.92/31,030.02 = 5,895.96/x
  3. Step 3: Cross multiply
    20,686.92x = 31,030.02 × 5,895.96
  4. Step 4: Simplify right side
    20,686.92x = 182,951,756.72
  5. Step 5: Solve for x
    x = 182,951,756.72/20,686.92
  6. Step 6: Final answer
    x = 8,843.84

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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.