Home / 21,176.84-31,775.49-14,976.70

Finding the Fourth Proportional to 21,176.84, 31,775.49 and 14,976.70

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Solution

The fourth proportional to 21,176.84, 31,775.49 and 14,976.70 is: 22,472.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.84 : 31,775.49 = 14,976.70 : x
  2. Step 2: Convert to fraction form
    21,176.84/31,775.49 = 14,976.70/x
  3. Step 3: Cross multiply
    21,176.84x = 31,775.49 × 14,976.70
  4. Step 4: Simplify right side
    21,176.84x = 475,891,901.64
  5. Step 5: Solve for x
    x = 475,891,901.64/21,176.84
  6. Step 6: Final answer
    x = 22,472.28

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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.