Home / 51,278.16-76,951.56-17,998.38

Finding the Fourth Proportional to 51,278.16, 76,951.56 and 17,998.38

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Solution

The fourth proportional to 51,278.16, 76,951.56 and 17,998.38 is: 27,009.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.16 : 76,951.56 = 17,998.38 : x
  2. Step 2: Convert to fraction form
    51,278.16/76,951.56 = 17,998.38/x
  3. Step 3: Cross multiply
    51,278.16x = 76,951.56 × 17,998.38
  4. Step 4: Simplify right side
    51,278.16x = 1,385,003,418.47
  5. Step 5: Solve for x
    x = 1,385,003,418.47/51,278.16
  6. Step 6: Final answer
    x = 27,009.62

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1.5x scale

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.