Home / 20,112.53-27,731.61-16,323.75

Finding the Fourth Proportional to 20,112.53, 27,731.61 and 16,323.75

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Solution

The fourth proportional to 20,112.53, 27,731.61 and 16,323.75 is: 22,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.53 : 27,731.61 = 16,323.75 : x
  2. Step 2: Convert to fraction form
    20,112.53/27,731.61 = 16,323.75/x
  3. Step 3: Cross multiply
    20,112.53x = 27,731.61 × 16,323.75
  4. Step 4: Simplify right side
    20,112.53x = 452,683,868.74
  5. Step 5: Solve for x
    x = 452,683,868.74/20,112.53
  6. Step 6: Final answer
    x = 22,507.56

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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.