Home / 27,799.61-38,363.49-15,866.79

Finding the Fourth Proportional to 27,799.61, 38,363.49 and 15,866.79

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Solution

The fourth proportional to 27,799.61, 38,363.49 and 15,866.79 is: 21,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,799.61 : 38,363.49 = 15,866.79 : x
  2. Step 2: Convert to fraction form
    27,799.61/38,363.49 = 15,866.79/x
  3. Step 3: Cross multiply
    27,799.61x = 38,363.49 × 15,866.79
  4. Step 4: Simplify right side
    27,799.61x = 608,705,439.50
  5. Step 5: Solve for x
    x = 608,705,439.50/27,799.61
  6. Step 6: Final answer
    x = 21,896.19

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Double scale
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Similar ratio
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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.