Home / 27,678.48-41,535-20,168.08

Finding the Fourth Proportional to 27,678.48, 41,535 and 20,168.08

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Solution

The fourth proportional to 27,678.48, 41,535 and 20,168.08 is: 30,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678.48 : 41,535 = 20,168.08 : x
  2. Step 2: Convert to fraction form
    27,678.48/41,535 = 20,168.08/x
  3. Step 3: Cross multiply
    27,678.48x = 41,535 × 20,168.08
  4. Step 4: Simplify right side
    27,678.48x = 837,681,202.80
  5. Step 5: Solve for x
    x = 837,681,202.80/27,678.48
  6. Step 6: Final answer
    x = 30,264.71

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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.