Home / 21,178.17-31,772.49-14,950.38

Finding the Fourth Proportional to 21,178.17, 31,772.49 and 14,950.38

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Solution

The fourth proportional to 21,178.17, 31,772.49 and 14,950.38 is: 22,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178.17 : 31,772.49 = 14,950.38 : x
  2. Step 2: Convert to fraction form
    21,178.17/31,772.49 = 14,950.38/x
  3. Step 3: Cross multiply
    21,178.17x = 31,772.49 × 14,950.38
  4. Step 4: Simplify right side
    21,178.17x = 475,010,799.05
  5. Step 5: Solve for x
    x = 475,010,799.05/21,178.17
  6. Step 6: Final answer
    x = 22,429.27

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1.5x scale

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.