Home / 27,549.54-38,036.67-21,164.76

Finding the Fourth Proportional to 27,549.54, 38,036.67 and 21,164.76

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Solution

The fourth proportional to 27,549.54, 38,036.67 and 21,164.76 is: 29,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,549.54 : 38,036.67 = 21,164.76 : x
  2. Step 2: Convert to fraction form
    27,549.54/38,036.67 = 21,164.76/x
  3. Step 3: Cross multiply
    27,549.54x = 38,036.67 × 21,164.76
  4. Step 4: Simplify right side
    27,549.54x = 805,036,991.75
  5. Step 5: Solve for x
    x = 805,036,991.75/27,549.54
  6. Step 6: Final answer
    x = 29,221.43

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Half scale
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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.