Home / 39,288.06-54,217.35-21,383.08

Finding the Fourth Proportional to 39,288.06, 54,217.35 and 21,383.08

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Solution

The fourth proportional to 39,288.06, 54,217.35 and 21,383.08 is: 29,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.06 : 54,217.35 = 21,383.08 : x
  2. Step 2: Convert to fraction form
    39,288.06/54,217.35 = 21,383.08/x
  3. Step 3: Cross multiply
    39,288.06x = 54,217.35 × 21,383.08
  4. Step 4: Simplify right side
    39,288.06x = 1,159,333,932.44
  5. Step 5: Solve for x
    x = 1,159,333,932.44/39,288.06
  6. Step 6: Final answer
    x = 29,508.56

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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.