Home / 13,350.29-20,024.73-3,990.38

Finding the Fourth Proportional to 13,350.29, 20,024.73 and 3,990.38

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Solution

The fourth proportional to 13,350.29, 20,024.73 and 3,990.38 is: 5,985.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.29 : 20,024.73 = 3,990.38 : x
  2. Step 2: Convert to fraction form
    13,350.29/20,024.73 = 3,990.38/x
  3. Step 3: Cross multiply
    13,350.29x = 20,024.73 × 3,990.38
  4. Step 4: Simplify right side
    13,350.29x = 79,906,332.16
  5. Step 5: Solve for x
    x = 79,906,332.16/13,350.29
  6. Step 6: Final answer
    x = 5,985.37

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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.