Home / 26,489.40-39,739.02-8,721.06

Finding the Fourth Proportional to 26,489.40, 39,739.02 and 8,721.06

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Solution

The fourth proportional to 26,489.40, 39,739.02 and 8,721.06 is: 13,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,489.40 : 39,739.02 = 8,721.06 : x
  2. Step 2: Convert to fraction form
    26,489.40/39,739.02 = 8,721.06/x
  3. Step 3: Cross multiply
    26,489.40x = 39,739.02 × 8,721.06
  4. Step 4: Simplify right side
    26,489.40x = 346,566,377.76
  5. Step 5: Solve for x
    x = 346,566,377.76/26,489.40
  6. Step 6: Final answer
    x = 13,083.21

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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.