Home / 40,138.26-55,386.30-22,228.75

Finding the Fourth Proportional to 40,138.26, 55,386.30 and 22,228.75

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Solution

The fourth proportional to 40,138.26, 55,386.30 and 22,228.75 is: 30,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.26 : 55,386.30 = 22,228.75 : x
  2. Step 2: Convert to fraction form
    40,138.26/55,386.30 = 22,228.75/x
  3. Step 3: Cross multiply
    40,138.26x = 55,386.30 × 22,228.75
  4. Step 4: Simplify right side
    40,138.26x = 1,231,168,216.13
  5. Step 5: Solve for x
    x = 1,231,168,216.13/40,138.26
  6. Step 6: Final answer
    x = 30,673.18

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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.