Home / 55,306.20-82,959.30-18,370.20

Finding the Fourth Proportional to 55,306.20, 82,959.30 and 18,370.20

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Solution

The fourth proportional to 55,306.20, 82,959.30 and 18,370.20 is: 27,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306.20 : 82,959.30 = 18,370.20 : x
  2. Step 2: Convert to fraction form
    55,306.20/82,959.30 = 18,370.20/x
  3. Step 3: Cross multiply
    55,306.20x = 82,959.30 × 18,370.20
  4. Step 4: Simplify right side
    55,306.20x = 1,523,978,932.86
  5. Step 5: Solve for x
    x = 1,523,978,932.86/55,306.20
  6. Step 6: Final answer
    x = 27,555.30

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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.