Home / 31,540.77-47,315.40-9,354.46

Finding the Fourth Proportional to 31,540.77, 47,315.40 and 9,354.46

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Solution

The fourth proportional to 31,540.77, 47,315.40 and 9,354.46 is: 14,032.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.77 : 47,315.40 = 9,354.46 : x
  2. Step 2: Convert to fraction form
    31,540.77/47,315.40 = 9,354.46/x
  3. Step 3: Cross multiply
    31,540.77x = 47,315.40 × 9,354.46
  4. Step 4: Simplify right side
    31,540.77x = 442,610,016.68
  5. Step 5: Solve for x
    x = 442,610,016.68/31,540.77
  6. Step 6: Final answer
    x = 14,032.95

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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.