Home / 26,686.17-39,990.38-18,223.29

Finding the Fourth Proportional to 26,686.17, 39,990.38 and 18,223.29

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Solution

The fourth proportional to 26,686.17, 39,990.38 and 18,223.29 is: 27,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,686.17 : 39,990.38 = 18,223.29 : x
  2. Step 2: Convert to fraction form
    26,686.17/39,990.38 = 18,223.29/x
  3. Step 3: Cross multiply
    26,686.17x = 39,990.38 × 18,223.29
  4. Step 4: Simplify right side
    26,686.17x = 728,756,200.83
  5. Step 5: Solve for x
    x = 728,756,200.83/26,686.17
  6. Step 6: Final answer
    x = 27,308.38

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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.