Home / 34,986.86-48,278.37-19,671.78

Finding the Fourth Proportional to 34,986.86, 48,278.37 and 19,671.78

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Solution

The fourth proportional to 34,986.86, 48,278.37 and 19,671.78 is: 27,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,986.86 : 48,278.37 = 19,671.78 : x
  2. Step 2: Convert to fraction form
    34,986.86/48,278.37 = 19,671.78/x
  3. Step 3: Cross multiply
    34,986.86x = 48,278.37 × 19,671.78
  4. Step 4: Simplify right side
    34,986.86x = 949,721,473.40
  5. Step 5: Solve for x
    x = 949,721,473.40/34,986.86
  6. Step 6: Final answer
    x = 27,145.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.