Home / 20,454.52-30,621.84-15,543.76

Finding the Fourth Proportional to 20,454.52, 30,621.84 and 15,543.76

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Solution

The fourth proportional to 20,454.52, 30,621.84 and 15,543.76 is: 23,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.52 : 30,621.84 = 15,543.76 : x
  2. Step 2: Convert to fraction form
    20,454.52/30,621.84 = 15,543.76/x
  3. Step 3: Cross multiply
    20,454.52x = 30,621.84 × 15,543.76
  4. Step 4: Simplify right side
    20,454.52x = 475,978,531.72
  5. Step 5: Solve for x
    x = 475,978,531.72/20,454.52
  6. Step 6: Final answer
    x = 23,270.09

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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.