Home / 20,940.29-31,410.94-6,149.18

Finding the Fourth Proportional to 20,940.29, 31,410.94 and 6,149.18

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Solution

The fourth proportional to 20,940.29, 31,410.94 and 6,149.18 is: 9,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,940.29 : 31,410.94 = 6,149.18 : x
  2. Step 2: Convert to fraction form
    20,940.29/31,410.94 = 6,149.18/x
  3. Step 3: Cross multiply
    20,940.29x = 31,410.94 × 6,149.18
  4. Step 4: Simplify right side
    20,940.29x = 193,151,598.71
  5. Step 5: Solve for x
    x = 193,151,598.71/20,940.29
  6. Step 6: Final answer
    x = 9,223.92

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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.