Home / 28,959.30-39,938.94-22,981.50

Finding the Fourth Proportional to 28,959.30, 39,938.94 and 22,981.50

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Solution

The fourth proportional to 28,959.30, 39,938.94 and 22,981.50 is: 31,694.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.30 : 39,938.94 = 22,981.50 : x
  2. Step 2: Convert to fraction form
    28,959.30/39,938.94 = 22,981.50/x
  3. Step 3: Cross multiply
    28,959.30x = 39,938.94 × 22,981.50
  4. Step 4: Simplify right side
    28,959.30x = 917,856,749.61
  5. Step 5: Solve for x
    x = 917,856,749.61/28,959.30
  6. Step 6: Final answer
    x = 31,694.71

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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.