Home / 28,860-39,843.33-22,000.14

Finding the Fourth Proportional to 28,860, 39,843.33 and 22,000.14

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Solution

The fourth proportional to 28,860, 39,843.33 and 22,000.14 is: 30,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860 : 39,843.33 = 22,000.14 : x
  2. Step 2: Convert to fraction form
    28,860/39,843.33 = 22,000.14/x
  3. Step 3: Cross multiply
    28,860x = 39,843.33 × 22,000.14
  4. Step 4: Simplify right side
    28,860x = 876,558,838.07
  5. Step 5: Solve for x
    x = 876,558,838.07/28,860
  6. Step 6: Final answer
    x = 30,372.79

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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.