Home / 31,512.61-47,278.19-9,326.58

Finding the Fourth Proportional to 31,512.61, 47,278.19 and 9,326.58

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Solution

The fourth proportional to 31,512.61, 47,278.19 and 9,326.58 is: 13,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.61 : 47,278.19 = 9,326.58 : x
  2. Step 2: Convert to fraction form
    31,512.61/47,278.19 = 9,326.58/x
  3. Step 3: Cross multiply
    31,512.61x = 47,278.19 × 9,326.58
  4. Step 4: Simplify right side
    31,512.61x = 440,943,821.29
  5. Step 5: Solve for x
    x = 440,943,821.29/31,512.61
  6. Step 6: Final answer
    x = 13,992.62

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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.