Home / 39,826.64-54,959.54-21,921.64

Finding the Fourth Proportional to 39,826.64, 54,959.54 and 21,921.64

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Solution

The fourth proportional to 39,826.64, 54,959.54 and 21,921.64 is: 30,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.64 : 54,959.54 = 21,921.64 : x
  2. Step 2: Convert to fraction form
    39,826.64/54,959.54 = 21,921.64/x
  3. Step 3: Cross multiply
    39,826.64x = 54,959.54 × 21,921.64
  4. Step 4: Simplify right side
    39,826.64x = 1,204,803,250.45
  5. Step 5: Solve for x
    x = 1,204,803,250.45/39,826.64
  6. Step 6: Final answer
    x = 30,251.19

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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.