Home / 18,949.50-28,443.97-13,957.51

Finding the Fourth Proportional to 18,949.50, 28,443.97 and 13,957.51

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Solution

The fourth proportional to 18,949.50, 28,443.97 and 13,957.51 is: 20,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.50 : 28,443.97 = 13,957.51 : x
  2. Step 2: Convert to fraction form
    18,949.50/28,443.97 = 13,957.51/x
  3. Step 3: Cross multiply
    18,949.50x = 28,443.97 × 13,957.51
  4. Step 4: Simplify right side
    18,949.50x = 397,006,925.93
  5. Step 5: Solve for x
    x = 397,006,925.93/18,949.50
  6. Step 6: Final answer
    x = 20,950.79

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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.