Home / 28,669.49-39,564.91-15,922.88

Finding the Fourth Proportional to 28,669.49, 39,564.91 and 15,922.88

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Solution

The fourth proportional to 28,669.49, 39,564.91 and 15,922.88 is: 21,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.49 : 39,564.91 = 15,922.88 : x
  2. Step 2: Convert to fraction form
    28,669.49/39,564.91 = 15,922.88/x
  3. Step 3: Cross multiply
    28,669.49x = 39,564.91 × 15,922.88
  4. Step 4: Simplify right side
    28,669.49x = 629,987,195.02
  5. Step 5: Solve for x
    x = 629,987,195.02/28,669.49
  6. Step 6: Final answer
    x = 21,974.13

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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.