Home / 20,559.60-30,846.60-8,876.40

Finding the Fourth Proportional to 20,559.60, 30,846.60 and 8,876.40

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Solution

The fourth proportional to 20,559.60, 30,846.60 and 8,876.40 is: 13,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.60 : 30,846.60 = 8,876.40 : x
  2. Step 2: Convert to fraction form
    20,559.60/30,846.60 = 8,876.40/x
  3. Step 3: Cross multiply
    20,559.60x = 30,846.60 × 8,876.40
  4. Step 4: Simplify right side
    20,559.60x = 273,806,760.24
  5. Step 5: Solve for x
    x = 273,806,760.24/20,559.60
  6. Step 6: Final answer
    x = 13,317.71

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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.