Home / 28,423.62-39,224.82-15,849.18

Finding the Fourth Proportional to 28,423.62, 39,224.82 and 15,849.18

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Solution

The fourth proportional to 28,423.62, 39,224.82 and 15,849.18 is: 21,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.62 : 39,224.82 = 15,849.18 : x
  2. Step 2: Convert to fraction form
    28,423.62/39,224.82 = 15,849.18/x
  3. Step 3: Cross multiply
    28,423.62x = 39,224.82 × 15,849.18
  4. Step 4: Simplify right side
    28,423.62x = 621,681,232.65
  5. Step 5: Solve for x
    x = 621,681,232.65/28,423.62
  6. Step 6: Final answer
    x = 21,871.99

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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.