Home / 55,400.24-83,111.24-20,340.20

Finding the Fourth Proportional to 55,400.24, 83,111.24 and 20,340.20

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Solution

The fourth proportional to 55,400.24, 83,111.24 and 20,340.20 is: 30,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,400.24 : 83,111.24 = 20,340.20 : x
  2. Step 2: Convert to fraction form
    55,400.24/83,111.24 = 20,340.20/x
  3. Step 3: Cross multiply
    55,400.24x = 83,111.24 × 20,340.20
  4. Step 4: Simplify right side
    55,400.24x = 1,690,499,243.85
  5. Step 5: Solve for x
    x = 1,690,499,243.85/55,400.24
  6. Step 6: Final answer
    x = 30,514.29

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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.