Home / 20,214.10-30,320.49-5,422.24

Finding the Fourth Proportional to 20,214.10, 30,320.49 and 5,422.24

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Solution

The fourth proportional to 20,214.10, 30,320.49 and 5,422.24 is: 8,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.10 : 30,320.49 = 5,422.24 : x
  2. Step 2: Convert to fraction form
    20,214.10/30,320.49 = 5,422.24/x
  3. Step 3: Cross multiply
    20,214.10x = 30,320.49 × 5,422.24
  4. Step 4: Simplify right side
    20,214.10x = 164,404,973.70
  5. Step 5: Solve for x
    x = 164,404,973.70/20,214.10
  6. Step 6: Final answer
    x = 8,133.18

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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.