Home / 35,278.86-52,918.32-11,921.70

Finding the Fourth Proportional to 35,278.86, 52,918.32 and 11,921.70

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Solution

The fourth proportional to 35,278.86, 52,918.32 and 11,921.70 is: 17,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,278.86 : 52,918.32 = 11,921.70 : x
  2. Step 2: Convert to fraction form
    35,278.86/52,918.32 = 11,921.70/x
  3. Step 3: Cross multiply
    35,278.86x = 52,918.32 × 11,921.70
  4. Step 4: Simplify right side
    35,278.86x = 630,876,335.54
  5. Step 5: Solve for x
    x = 630,876,335.54/35,278.86
  6. Step 6: Final answer
    x = 17,882.56

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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.