Home / 31,902.40-47,740.20-27,787.60

Finding the Fourth Proportional to 31,902.40, 47,740.20 and 27,787.60

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Solution

The fourth proportional to 31,902.40, 47,740.20 and 27,787.60 is: 41,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.40 : 47,740.20 = 27,787.60 : x
  2. Step 2: Convert to fraction form
    31,902.40/47,740.20 = 27,787.60/x
  3. Step 3: Cross multiply
    31,902.40x = 47,740.20 × 27,787.60
  4. Step 4: Simplify right side
    31,902.40x = 1,326,585,581.52
  5. Step 5: Solve for x
    x = 1,326,585,581.52/31,902.40
  6. Step 6: Final answer
    x = 41,582.63

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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.