Home / 27,780.33-38,334.96-15,844.17

Finding the Fourth Proportional to 27,780.33, 38,334.96 and 15,844.17

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Solution

The fourth proportional to 27,780.33, 38,334.96 and 15,844.17 is: 21,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.33 : 38,334.96 = 15,844.17 : x
  2. Step 2: Convert to fraction form
    27,780.33/38,334.96 = 15,844.17/x
  3. Step 3: Cross multiply
    27,780.33x = 38,334.96 × 15,844.17
  4. Step 4: Simplify right side
    27,780.33x = 607,385,623.18
  5. Step 5: Solve for x
    x = 607,385,623.18/27,780.33
  6. Step 6: Final answer
    x = 21,863.87

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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.