Home / 36,921.43-55,382.14-20,386.60

Finding the Fourth Proportional to 36,921.43, 55,382.14 and 20,386.60

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Solution

The fourth proportional to 36,921.43, 55,382.14 and 20,386.60 is: 30,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.43 : 55,382.14 = 20,386.60 : x
  2. Step 2: Convert to fraction form
    36,921.43/55,382.14 = 20,386.60/x
  3. Step 3: Cross multiply
    36,921.43x = 55,382.14 × 20,386.60
  4. Step 4: Simplify right side
    36,921.43x = 1,129,053,535.32
  5. Step 5: Solve for x
    x = 1,129,053,535.32/36,921.43
  6. Step 6: Final answer
    x = 30,579.90

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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.