Home / 40,043.81-55,260.15-22,139.57

Finding the Fourth Proportional to 40,043.81, 55,260.15 and 22,139.57

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Solution

The fourth proportional to 40,043.81, 55,260.15 and 22,139.57 is: 30,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.81 : 55,260.15 = 22,139.57 : x
  2. Step 2: Convert to fraction form
    40,043.81/55,260.15 = 22,139.57/x
  3. Step 3: Cross multiply
    40,043.81x = 55,260.15 × 22,139.57
  4. Step 4: Simplify right side
    40,043.81x = 1,223,435,959.14
  5. Step 5: Solve for x
    x = 1,223,435,959.14/40,043.81
  6. Step 6: Final answer
    x = 30,552.44

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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.