Home / 40,235.12-55,523.40-22,329.20

Finding the Fourth Proportional to 40,235.12, 55,523.40 and 22,329.20

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Solution

The fourth proportional to 40,235.12, 55,523.40 and 22,329.20 is: 30,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,235.12 : 55,523.40 = 22,329.20 : x
  2. Step 2: Convert to fraction form
    40,235.12/55,523.40 = 22,329.20/x
  3. Step 3: Cross multiply
    40,235.12x = 55,523.40 × 22,329.20
  4. Step 4: Simplify right side
    40,235.12x = 1,239,793,103.28
  5. Step 5: Solve for x
    x = 1,239,793,103.28/40,235.12
  6. Step 6: Final answer
    x = 30,813.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.