Home / 20,404.68-30,541.42-10,530.52

Finding the Fourth Proportional to 20,404.68, 30,541.42 and 10,530.52

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Solution

The fourth proportional to 20,404.68, 30,541.42 and 10,530.52 is: 15,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.68 : 30,541.42 = 10,530.52 : x
  2. Step 2: Convert to fraction form
    20,404.68/30,541.42 = 10,530.52/x
  3. Step 3: Cross multiply
    20,404.68x = 30,541.42 × 10,530.52
  4. Step 4: Simplify right side
    20,404.68x = 321,617,034.14
  5. Step 5: Solve for x
    x = 321,617,034.14/20,404.68
  6. Step 6: Final answer
    x = 15,761.92

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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.