Home / 20,553.65-30,824.15-10,687.55

Finding the Fourth Proportional to 20,553.65, 30,824.15 and 10,687.55

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Solution

The fourth proportional to 20,553.65, 30,824.15 and 10,687.55 is: 16,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.65 : 30,824.15 = 10,687.55 : x
  2. Step 2: Convert to fraction form
    20,553.65/30,824.15 = 10,687.55/x
  3. Step 3: Cross multiply
    20,553.65x = 30,824.15 × 10,687.55
  4. Step 4: Simplify right side
    20,553.65x = 329,434,436.77
  5. Step 5: Solve for x
    x = 329,434,436.77/20,553.65
  6. Step 6: Final answer
    x = 16,028.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.