Home / 20,184.02-27,854.10-11,231.90

Finding the Fourth Proportional to 20,184.02, 27,854.10 and 11,231.90

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Solution

The fourth proportional to 20,184.02, 27,854.10 and 11,231.90 is: 15,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.02 : 27,854.10 = 11,231.90 : x
  2. Step 2: Convert to fraction form
    20,184.02/27,854.10 = 11,231.90/x
  3. Step 3: Cross multiply
    20,184.02x = 27,854.10 × 11,231.90
  4. Step 4: Simplify right side
    20,184.02x = 312,854,465.79
  5. Step 5: Solve for x
    x = 312,854,465.79/20,184.02
  6. Step 6: Final answer
    x = 15,500.11

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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.