Home / 27,355.03-37,781.08-18,386.97

Finding the Fourth Proportional to 27,355.03, 37,781.08 and 18,386.97

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Solution

The fourth proportional to 27,355.03, 37,781.08 and 18,386.97 is: 25,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,355.03 : 37,781.08 = 18,386.97 : x
  2. Step 2: Convert to fraction form
    27,355.03/37,781.08 = 18,386.97/x
  3. Step 3: Cross multiply
    27,355.03x = 37,781.08 × 18,386.97
  4. Step 4: Simplify right side
    27,355.03x = 694,679,396.88
  5. Step 5: Solve for x
    x = 694,679,396.88/27,355.03
  6. Step 6: Final answer
    x = 25,394.94

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1.5x scale

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.