Home / 36,016.40-54,024.60-18,520.40

Finding the Fourth Proportional to 36,016.40, 54,024.60 and 18,520.40

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Solution

The fourth proportional to 36,016.40, 54,024.60 and 18,520.40 is: 27,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,016.40 : 54,024.60 = 18,520.40 : x
  2. Step 2: Convert to fraction form
    36,016.40/54,024.60 = 18,520.40/x
  3. Step 3: Cross multiply
    36,016.40x = 54,024.60 × 18,520.40
  4. Step 4: Simplify right side
    36,016.40x = 1,000,557,201.84
  5. Step 5: Solve for x
    x = 1,000,557,201.84/36,016.40
  6. Step 6: Final answer
    x = 27,780.60

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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.