Home / 20,584.88-28,423.13-15,797.24

Finding the Fourth Proportional to 20,584.88, 28,423.13 and 15,797.24

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Solution

The fourth proportional to 20,584.88, 28,423.13 and 15,797.24 is: 21,812.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.88 : 28,423.13 = 15,797.24 : x
  2. Step 2: Convert to fraction form
    20,584.88/28,423.13 = 15,797.24/x
  3. Step 3: Cross multiply
    20,584.88x = 28,423.13 × 15,797.24
  4. Step 4: Simplify right side
    20,584.88x = 449,007,006.16
  5. Step 5: Solve for x
    x = 449,007,006.16/20,584.88
  6. Step 6: Final answer
    x = 21,812.47

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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.