Home / 54,217.63-81,331.96-18,674.31

Finding the Fourth Proportional to 54,217.63, 81,331.96 and 18,674.31

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Solution

The fourth proportional to 54,217.63, 81,331.96 and 18,674.31 is: 28,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,217.63 : 81,331.96 = 18,674.31 : x
  2. Step 2: Convert to fraction form
    54,217.63/81,331.96 = 18,674.31/x
  3. Step 3: Cross multiply
    54,217.63x = 81,331.96 × 18,674.31
  4. Step 4: Simplify right side
    54,217.63x = 1,518,818,187.26
  5. Step 5: Solve for x
    x = 1,518,818,187.26/54,217.63
  6. Step 6: Final answer
    x = 28,013.36

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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.