Home / 38,475.34-57,721.90-12,180.08

Finding the Fourth Proportional to 38,475.34, 57,721.90 and 12,180.08

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Solution

The fourth proportional to 38,475.34, 57,721.90 and 12,180.08 is: 18,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,475.34 : 57,721.90 = 12,180.08 : x
  2. Step 2: Convert to fraction form
    38,475.34/57,721.90 = 12,180.08/x
  3. Step 3: Cross multiply
    38,475.34x = 57,721.90 × 12,180.08
  4. Step 4: Simplify right side
    38,475.34x = 703,057,629.00
  5. Step 5: Solve for x
    x = 703,057,629.00/38,475.34
  6. Step 6: Final answer
    x = 18,272.94

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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.