Home / 27,781.77-41,635.40-17,915.97

Finding the Fourth Proportional to 27,781.77, 41,635.40 and 17,915.97

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Solution

The fourth proportional to 27,781.77, 41,635.40 and 17,915.97 is: 26,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.77 : 41,635.40 = 17,915.97 : x
  2. Step 2: Convert to fraction form
    27,781.77/41,635.40 = 17,915.97/x
  3. Step 3: Cross multiply
    27,781.77x = 41,635.40 × 17,915.97
  4. Step 4: Simplify right side
    27,781.77x = 745,938,577.34
  5. Step 5: Solve for x
    x = 745,938,577.34/27,781.77
  6. Step 6: Final answer
    x = 26,849.93

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1.5x scale

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.