Home / 28,764.60-43,121.30-17,065.40

Finding the Fourth Proportional to 28,764.60, 43,121.30 and 17,065.40

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Solution

The fourth proportional to 28,764.60, 43,121.30 and 17,065.40 is: 25,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.60 : 43,121.30 = 17,065.40 : x
  2. Step 2: Convert to fraction form
    28,764.60/43,121.30 = 17,065.40/x
  3. Step 3: Cross multiply
    28,764.60x = 43,121.30 × 17,065.40
  4. Step 4: Simplify right side
    28,764.60x = 735,882,233.02
  5. Step 5: Solve for x
    x = 735,882,233.02/28,764.60
  6. Step 6: Final answer
    x = 25,582.91

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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.