Home / 31,995.41-47,999.29-12,272.43

Finding the Fourth Proportional to 31,995.41, 47,999.29 and 12,272.43

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Solution

The fourth proportional to 31,995.41, 47,999.29 and 12,272.43 is: 18,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.41 : 47,999.29 = 12,272.43 : x
  2. Step 2: Convert to fraction form
    31,995.41/47,999.29 = 12,272.43/x
  3. Step 3: Cross multiply
    31,995.41x = 47,999.29 × 12,272.43
  4. Step 4: Simplify right side
    31,995.41x = 589,068,065.92
  5. Step 5: Solve for x
    x = 589,068,065.92/31,995.41
  6. Step 6: Final answer
    x = 18,411.02

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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.