Home / 20,116.72-30,176.60-5,325.56

Finding the Fourth Proportional to 20,116.72, 30,176.60 and 5,325.56

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Solution

The fourth proportional to 20,116.72, 30,176.60 and 5,325.56 is: 7,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.72 : 30,176.60 = 5,325.56 : x
  2. Step 2: Convert to fraction form
    20,116.72/30,176.60 = 5,325.56/x
  3. Step 3: Cross multiply
    20,116.72x = 30,176.60 × 5,325.56
  4. Step 4: Simplify right side
    20,116.72x = 160,707,293.90
  5. Step 5: Solve for x
    x = 160,707,293.90/20,116.72
  6. Step 6: Final answer
    x = 7,988.74

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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.