Home / 26,383.08-39,574.54-20,387.88

Finding the Fourth Proportional to 26,383.08, 39,574.54 and 20,387.88

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Solution

The fourth proportional to 26,383.08, 39,574.54 and 20,387.88 is: 30,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,383.08 : 39,574.54 = 20,387.88 : x
  2. Step 2: Convert to fraction form
    26,383.08/39,574.54 = 20,387.88/x
  3. Step 3: Cross multiply
    26,383.08x = 39,574.54 × 20,387.88
  4. Step 4: Simplify right side
    26,383.08x = 806,840,972.58
  5. Step 5: Solve for x
    x = 806,840,972.58/26,383.08
  6. Step 6: Final answer
    x = 30,581.76

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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.