Home / 20,940.30-31,410.68-6,149.52

Finding the Fourth Proportional to 20,940.30, 31,410.68 and 6,149.52

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Solution

The fourth proportional to 20,940.30, 31,410.68 and 6,149.52 is: 9,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,940.30 : 31,410.68 = 6,149.52 : x
  2. Step 2: Convert to fraction form
    20,940.30/31,410.68 = 6,149.52/x
  3. Step 3: Cross multiply
    20,940.30x = 31,410.68 × 6,149.52
  4. Step 4: Simplify right side
    20,940.30x = 193,160,574.13
  5. Step 5: Solve for x
    x = 193,160,574.13/20,940.30
  6. Step 6: Final answer
    x = 9,224.35

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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.