Home / 55,947.75-83,921.61-20,890.14

Finding the Fourth Proportional to 55,947.75, 83,921.61 and 20,890.14

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Solution

The fourth proportional to 55,947.75, 83,921.61 and 20,890.14 is: 31,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,947.75 : 83,921.61 = 20,890.14 : x
  2. Step 2: Convert to fraction form
    55,947.75/83,921.61 = 20,890.14/x
  3. Step 3: Cross multiply
    55,947.75x = 83,921.61 × 20,890.14
  4. Step 4: Simplify right side
    55,947.75x = 1,753,134,181.93
  5. Step 5: Solve for x
    x = 1,753,134,181.93/55,947.75
  6. Step 6: Final answer
    x = 31,335.20

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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.