Home / 18,155.60-27,233.40-12,933.20

Finding the Fourth Proportional to 18,155.60, 27,233.40 and 12,933.20

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Solution

The fourth proportional to 18,155.60, 27,233.40 and 12,933.20 is: 19,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.60 : 27,233.40 = 12,933.20 : x
  2. Step 2: Convert to fraction form
    18,155.60/27,233.40 = 12,933.20/x
  3. Step 3: Cross multiply
    18,155.60x = 27,233.40 × 12,933.20
  4. Step 4: Simplify right side
    18,155.60x = 352,215,008.88
  5. Step 5: Solve for x
    x = 352,215,008.88/18,155.60
  6. Step 6: Final answer
    x = 19,399.80

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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.