Home / 20,281.38-30,422.06-7,132.24

Finding the Fourth Proportional to 20,281.38, 30,422.06 and 7,132.24

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Solution

The fourth proportional to 20,281.38, 30,422.06 and 7,132.24 is: 10,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.38 : 30,422.06 = 7,132.24 : x
  2. Step 2: Convert to fraction form
    20,281.38/30,422.06 = 7,132.24/x
  3. Step 3: Cross multiply
    20,281.38x = 30,422.06 × 7,132.24
  4. Step 4: Simplify right side
    20,281.38x = 216,977,433.21
  5. Step 5: Solve for x
    x = 216,977,433.21/20,281.38
  6. Step 6: Final answer
    x = 10,698.36

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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.