Home / 28,218.22-38,924.17-18,658.29

Finding the Fourth Proportional to 28,218.22, 38,924.17 and 18,658.29

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Solution

The fourth proportional to 28,218.22, 38,924.17 and 18,658.29 is: 25,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.22 : 38,924.17 = 18,658.29 : x
  2. Step 2: Convert to fraction form
    28,218.22/38,924.17 = 18,658.29/x
  3. Step 3: Cross multiply
    28,218.22x = 38,924.17 × 18,658.29
  4. Step 4: Simplify right side
    28,218.22x = 726,258,405.22
  5. Step 5: Solve for x
    x = 726,258,405.22/28,218.22
  6. Step 6: Final answer
    x = 25,737.22

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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.