Home / 28,981.73-43,472.61-15,826.91

Finding the Fourth Proportional to 28,981.73, 43,472.61 and 15,826.91

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Solution

The fourth proportional to 28,981.73, 43,472.61 and 15,826.91 is: 23,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.73 : 43,472.61 = 15,826.91 : x
  2. Step 2: Convert to fraction form
    28,981.73/43,472.61 = 15,826.91/x
  3. Step 3: Cross multiply
    28,981.73x = 43,472.61 × 15,826.91
  4. Step 4: Simplify right side
    28,981.73x = 688,037,085.94
  5. Step 5: Solve for x
    x = 688,037,085.94/28,981.73
  6. Step 6: Final answer
    x = 23,740.37

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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.