Home / 28,966.31-39,976.86-17,642.45

Finding the Fourth Proportional to 28,966.31, 39,976.86 and 17,642.45

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Solution

The fourth proportional to 28,966.31, 39,976.86 and 17,642.45 is: 24,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.31 : 39,976.86 = 17,642.45 : x
  2. Step 2: Convert to fraction form
    28,966.31/39,976.86 = 17,642.45/x
  3. Step 3: Cross multiply
    28,966.31x = 39,976.86 × 17,642.45
  4. Step 4: Simplify right side
    28,966.31x = 705,289,553.82
  5. Step 5: Solve for x
    x = 705,289,553.82/28,966.31
  6. Step 6: Final answer
    x = 24,348.62

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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.