Home / 20,014.29-30,021.48-5,223.18

Finding the Fourth Proportional to 20,014.29, 30,021.48 and 5,223.18

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Solution

The fourth proportional to 20,014.29, 30,021.48 and 5,223.18 is: 7,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.29 : 30,021.48 = 5,223.18 : x
  2. Step 2: Convert to fraction form
    20,014.29/30,021.48 = 5,223.18/x
  3. Step 3: Cross multiply
    20,014.29x = 30,021.48 × 5,223.18
  4. Step 4: Simplify right side
    20,014.29x = 156,807,593.91
  5. Step 5: Solve for x
    x = 156,807,593.91/20,014.29
  6. Step 6: Final answer
    x = 7,834.78

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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.