Home / 20,251.74-30,374.81-5,461.55

Finding the Fourth Proportional to 20,251.74, 30,374.81 and 5,461.55

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Solution

The fourth proportional to 20,251.74, 30,374.81 and 5,461.55 is: 8,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.74 : 30,374.81 = 5,461.55 : x
  2. Step 2: Convert to fraction form
    20,251.74/30,374.81 = 5,461.55/x
  3. Step 3: Cross multiply
    20,251.74x = 30,374.81 × 5,461.55
  4. Step 4: Simplify right side
    20,251.74x = 165,893,543.56
  5. Step 5: Solve for x
    x = 165,893,543.56/20,251.74
  6. Step 6: Final answer
    x = 8,191.57

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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.