Home / 20,580.64-30,870.92-5,791.04

Finding the Fourth Proportional to 20,580.64, 30,870.92 and 5,791.04

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Solution

The fourth proportional to 20,580.64, 30,870.92 and 5,791.04 is: 8,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.64 : 30,870.92 = 5,791.04 : x
  2. Step 2: Convert to fraction form
    20,580.64/30,870.92 = 5,791.04/x
  3. Step 3: Cross multiply
    20,580.64x = 30,870.92 × 5,791.04
  4. Step 4: Simplify right side
    20,580.64x = 178,774,732.56
  5. Step 5: Solve for x
    x = 178,774,732.56/20,580.64
  6. Step 6: Final answer
    x = 8,686.55

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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.