Home / 20,945.16-31,422.14-6,152.83

Finding the Fourth Proportional to 20,945.16, 31,422.14 and 6,152.83

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Solution

The fourth proportional to 20,945.16, 31,422.14 and 6,152.83 is: 9,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.16 : 31,422.14 = 6,152.83 : x
  2. Step 2: Convert to fraction form
    20,945.16/31,422.14 = 6,152.83/x
  3. Step 3: Cross multiply
    20,945.16x = 31,422.14 × 6,152.83
  4. Step 4: Simplify right side
    20,945.16x = 193,335,085.66
  5. Step 5: Solve for x
    x = 193,335,085.66/20,945.16
  6. Step 6: Final answer
    x = 9,230.54

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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.