Home / 40,139.65-55,392.76-22,234.28

Finding the Fourth Proportional to 40,139.65, 55,392.76 and 22,234.28

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Solution

The fourth proportional to 40,139.65, 55,392.76 and 22,234.28 is: 30,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.65 : 55,392.76 = 22,234.28 : x
  2. Step 2: Convert to fraction form
    40,139.65/55,392.76 = 22,234.28/x
  3. Step 3: Cross multiply
    40,139.65x = 55,392.76 × 22,234.28
  4. Step 4: Simplify right side
    40,139.65x = 1,231,618,198.23
  5. Step 5: Solve for x
    x = 1,231,618,198.23/40,139.65
  6. Step 6: Final answer
    x = 30,683.33

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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.