Home / 39,672.13-54,751.08-21,770.62

Finding the Fourth Proportional to 39,672.13, 54,751.08 and 21,770.62

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Solution

The fourth proportional to 39,672.13, 54,751.08 and 21,770.62 is: 30,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.13 : 54,751.08 = 21,770.62 : x
  2. Step 2: Convert to fraction form
    39,672.13/54,751.08 = 21,770.62/x
  3. Step 3: Cross multiply
    39,672.13x = 54,751.08 × 21,770.62
  4. Step 4: Simplify right side
    39,672.13x = 1,191,965,107.35
  5. Step 5: Solve for x
    x = 1,191,965,107.35/39,672.13
  6. Step 6: Final answer
    x = 30,045.40

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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.