Home / 31,382.89-47,059.96-18,738.39

Finding the Fourth Proportional to 31,382.89, 47,059.96 and 18,738.39

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Solution

The fourth proportional to 31,382.89, 47,059.96 and 18,738.39 is: 28,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.89 : 47,059.96 = 18,738.39 : x
  2. Step 2: Convert to fraction form
    31,382.89/47,059.96 = 18,738.39/x
  3. Step 3: Cross multiply
    31,382.89x = 47,059.96 × 18,738.39
  4. Step 4: Simplify right side
    31,382.89x = 881,827,883.86
  5. Step 5: Solve for x
    x = 881,827,883.86/31,382.89
  6. Step 6: Final answer
    x = 28,099.00

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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.