Home / 38,470.73-57,700.30-12,172.05

Finding the Fourth Proportional to 38,470.73, 57,700.30 and 12,172.05

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Solution

The fourth proportional to 38,470.73, 57,700.30 and 12,172.05 is: 18,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.73 : 57,700.30 = 12,172.05 : x
  2. Step 2: Convert to fraction form
    38,470.73/57,700.30 = 12,172.05/x
  3. Step 3: Cross multiply
    38,470.73x = 57,700.30 × 12,172.05
  4. Step 4: Simplify right side
    38,470.73x = 702,330,936.62
  5. Step 5: Solve for x
    x = 702,330,936.62/38,470.73
  6. Step 6: Final answer
    x = 18,256.24

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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.