Home / 18,822.40-28,233.60-10,052.80

Finding the Fourth Proportional to 18,822.40, 28,233.60 and 10,052.80

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Solution

The fourth proportional to 18,822.40, 28,233.60 and 10,052.80 is: 15,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.40 : 28,233.60 = 10,052.80 : x
  2. Step 2: Convert to fraction form
    18,822.40/28,233.60 = 10,052.80/x
  3. Step 3: Cross multiply
    18,822.40x = 28,233.60 × 10,052.80
  4. Step 4: Simplify right side
    18,822.40x = 283,826,734.08
  5. Step 5: Solve for x
    x = 283,826,734.08/18,822.40
  6. Step 6: Final answer
    x = 15,079.20

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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.