Home / 39,826.74-54,960.47-21,921.36

Finding the Fourth Proportional to 39,826.74, 54,960.47 and 21,921.36

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Solution

The fourth proportional to 39,826.74, 54,960.47 and 21,921.36 is: 30,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.74 : 54,960.47 = 21,921.36 : x
  2. Step 2: Convert to fraction form
    39,826.74/54,960.47 = 21,921.36/x
  3. Step 3: Cross multiply
    39,826.74x = 54,960.47 × 21,921.36
  4. Step 4: Simplify right side
    39,826.74x = 1,204,808,139.03
  5. Step 5: Solve for x
    x = 1,204,808,139.03/39,826.74
  6. Step 6: Final answer
    x = 30,251.24

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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.