Home / 26,215.27-39,290.09-20,646.61

Finding the Fourth Proportional to 26,215.27, 39,290.09 and 20,646.61

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Solution

The fourth proportional to 26,215.27, 39,290.09 and 20,646.61 is: 30,944.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,215.27 : 39,290.09 = 20,646.61 : x
  2. Step 2: Convert to fraction form
    26,215.27/39,290.09 = 20,646.61/x
  3. Step 3: Cross multiply
    26,215.27x = 39,290.09 × 20,646.61
  4. Step 4: Simplify right side
    26,215.27x = 811,206,963.64
  5. Step 5: Solve for x
    x = 811,206,963.64/26,215.27
  6. Step 6: Final answer
    x = 30,944.07

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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.