Home / 32,872.91-45,372.16-20,133.11

Finding the Fourth Proportional to 32,872.91, 45,372.16 and 20,133.11

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Solution

The fourth proportional to 32,872.91, 45,372.16 and 20,133.11 is: 27,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,872.91 : 45,372.16 = 20,133.11 : x
  2. Step 2: Convert to fraction form
    32,872.91/45,372.16 = 20,133.11/x
  3. Step 3: Cross multiply
    32,872.91x = 45,372.16 × 20,133.11
  4. Step 4: Simplify right side
    32,872.91x = 913,482,647.91
  5. Step 5: Solve for x
    x = 913,482,647.91/32,872.91
  6. Step 6: Final answer
    x = 27,788.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.