Home / 20,163.02-27,823.40-11,209.98

Finding the Fourth Proportional to 20,163.02, 27,823.40 and 11,209.98

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Solution

The fourth proportional to 20,163.02, 27,823.40 and 11,209.98 is: 15,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.02 : 27,823.40 = 11,209.98 : x
  2. Step 2: Convert to fraction form
    20,163.02/27,823.40 = 11,209.98/x
  3. Step 3: Cross multiply
    20,163.02x = 27,823.40 × 11,209.98
  4. Step 4: Simplify right side
    20,163.02x = 311,899,757.53
  5. Step 5: Solve for x
    x = 311,899,757.53/20,163.02
  6. Step 6: Final answer
    x = 15,468.90

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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.