Home / 20,559.30-30,766.05-13,998.30

Finding the Fourth Proportional to 20,559.30, 30,766.05 and 13,998.30

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Solution

The fourth proportional to 20,559.30, 30,766.05 and 13,998.30 is: 20,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.30 : 30,766.05 = 13,998.30 : x
  2. Step 2: Convert to fraction form
    20,559.30/30,766.05 = 13,998.30/x
  3. Step 3: Cross multiply
    20,559.30x = 30,766.05 × 13,998.30
  4. Step 4: Simplify right side
    20,559.30x = 430,672,397.72
  5. Step 5: Solve for x
    x = 430,672,397.72/20,559.30
  6. Step 6: Final answer
    x = 20,947.81

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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.