Home / 22,446.09-30,942.95-15,711.21

Finding the Fourth Proportional to 22,446.09, 30,942.95 and 15,711.21

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Solution

The fourth proportional to 22,446.09, 30,942.95 and 15,711.21 is: 21,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,446.09 : 30,942.95 = 15,711.21 : x
  2. Step 2: Convert to fraction form
    22,446.09/30,942.95 = 15,711.21/x
  3. Step 3: Cross multiply
    22,446.09x = 30,942.95 × 15,711.21
  4. Step 4: Simplify right side
    22,446.09x = 486,151,106.91
  5. Step 5: Solve for x
    x = 486,151,106.91/22,446.09
  6. Step 6: Final answer
    x = 21,658.61

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1.5x scale

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.