Home / 54,653.20-81,979.80-15,213.39

Finding the Fourth Proportional to 54,653.20, 81,979.80 and 15,213.39

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Solution

The fourth proportional to 54,653.20, 81,979.80 and 15,213.39 is: 22,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.20 : 81,979.80 = 15,213.39 : x
  2. Step 2: Convert to fraction form
    54,653.20/81,979.80 = 15,213.39/x
  3. Step 3: Cross multiply
    54,653.20x = 81,979.80 × 15,213.39
  4. Step 4: Simplify right side
    54,653.20x = 1,247,190,305.05
  5. Step 5: Solve for x
    x = 1,247,190,305.05/54,653.20
  6. Step 6: Final answer
    x = 22,820.08

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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.