Home / 28,639.74-42,976.62-15,491.82

Finding the Fourth Proportional to 28,639.74, 42,976.62 and 15,491.82

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Solution

The fourth proportional to 28,639.74, 42,976.62 and 15,491.82 is: 23,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.74 : 42,976.62 = 15,491.82 : x
  2. Step 2: Convert to fraction form
    28,639.74/42,976.62 = 15,491.82/x
  3. Step 3: Cross multiply
    28,639.74x = 42,976.62 × 15,491.82
  4. Step 4: Simplify right side
    28,639.74x = 665,786,061.25
  5. Step 5: Solve for x
    x = 665,786,061.25/28,639.74
  6. Step 6: Final answer
    x = 23,246.93

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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.