Home / 55,240.29-82,870.16-20,228.85

Finding the Fourth Proportional to 55,240.29, 82,870.16 and 20,228.85

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Solution

The fourth proportional to 55,240.29, 82,870.16 and 20,228.85 is: 30,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,240.29 : 82,870.16 = 20,228.85 : x
  2. Step 2: Convert to fraction form
    55,240.29/82,870.16 = 20,228.85/x
  3. Step 3: Cross multiply
    55,240.29x = 82,870.16 × 20,228.85
  4. Step 4: Simplify right side
    55,240.29x = 1,676,367,934.97
  5. Step 5: Solve for x
    x = 1,676,367,934.97/55,240.29
  6. Step 6: Final answer
    x = 30,346.83

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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.