Home / 27,188.79-37,549.05-18,712.80

Finding the Fourth Proportional to 27,188.79, 37,549.05 and 18,712.80

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Solution

The fourth proportional to 27,188.79, 37,549.05 and 18,712.80 is: 25,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,188.79 : 37,549.05 = 18,712.80 : x
  2. Step 2: Convert to fraction form
    27,188.79/37,549.05 = 18,712.80/x
  3. Step 3: Cross multiply
    27,188.79x = 37,549.05 × 18,712.80
  4. Step 4: Simplify right side
    27,188.79x = 702,647,862.84
  5. Step 5: Solve for x
    x = 702,647,862.84/27,188.79
  6. Step 6: Final answer
    x = 25,843.29

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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.