Home / 22,815.32-34,219.29-8,020.79

Finding the Fourth Proportional to 22,815.32, 34,219.29 and 8,020.79

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Solution

The fourth proportional to 22,815.32, 34,219.29 and 8,020.79 is: 12,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.32 : 34,219.29 = 8,020.79 : x
  2. Step 2: Convert to fraction form
    22,815.32/34,219.29 = 8,020.79/x
  3. Step 3: Cross multiply
    22,815.32x = 34,219.29 × 8,020.79
  4. Step 4: Simplify right side
    22,815.32x = 274,465,739.04
  5. Step 5: Solve for x
    x = 274,465,739.04/22,815.32
  6. Step 6: Final answer
    x = 12,029.89

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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.