Home / 18,331.60-27,447.48-12,773.20

Finding the Fourth Proportional to 18,331.60, 27,447.48 and 12,773.20

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Solution

The fourth proportional to 18,331.60, 27,447.48 and 12,773.20 is: 19,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.60 : 27,447.48 = 12,773.20 : x
  2. Step 2: Convert to fraction form
    18,331.60/27,447.48 = 12,773.20/x
  3. Step 3: Cross multiply
    18,331.60x = 27,447.48 × 12,773.20
  4. Step 4: Simplify right side
    18,331.60x = 350,592,151.54
  5. Step 5: Solve for x
    x = 350,592,151.54/18,331.60
  6. Step 6: Final answer
    x = 19,125.02

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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.