Home / 39,673.64-54,748.68-21,768.48

Finding the Fourth Proportional to 39,673.64, 54,748.68 and 21,768.48

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Solution

The fourth proportional to 39,673.64, 54,748.68 and 21,768.48 is: 30,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.64 : 54,748.68 = 21,768.48 : x
  2. Step 2: Convert to fraction form
    39,673.64/54,748.68 = 21,768.48/x
  3. Step 3: Cross multiply
    39,673.64x = 54,748.68 × 21,768.48
  4. Step 4: Simplify right side
    39,673.64x = 1,191,795,545.61
  5. Step 5: Solve for x
    x = 1,191,795,545.61/39,673.64
  6. Step 6: Final answer
    x = 30,039.98

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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.