Home / 20,404.46-30,543.09-15,712.28

Finding the Fourth Proportional to 20,404.46, 30,543.09 and 15,712.28

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Solution

The fourth proportional to 20,404.46, 30,543.09 and 15,712.28 is: 23,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.46 : 30,543.09 = 15,712.28 : x
  2. Step 2: Convert to fraction form
    20,404.46/30,543.09 = 15,712.28/x
  3. Step 3: Cross multiply
    20,404.46x = 30,543.09 × 15,712.28
  4. Step 4: Simplify right side
    20,404.46x = 479,901,503.58
  5. Step 5: Solve for x
    x = 479,901,503.58/20,404.46
  6. Step 6: Final answer
    x = 23,519.44

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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.