Home / 32,922.78-49,287.23-20,402.57

Finding the Fourth Proportional to 32,922.78, 49,287.23 and 20,402.57

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Solution

The fourth proportional to 32,922.78, 49,287.23 and 20,402.57 is: 30,543.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,922.78 : 49,287.23 = 20,402.57 : x
  2. Step 2: Convert to fraction form
    32,922.78/49,287.23 = 20,402.57/x
  3. Step 3: Cross multiply
    32,922.78x = 49,287.23 × 20,402.57
  4. Step 4: Simplify right side
    32,922.78x = 1,005,585,811.73
  5. Step 5: Solve for x
    x = 1,005,585,811.73/32,922.78
  6. Step 6: Final answer
    x = 30,543.77

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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.