Home / 27,663.88-38,176.16-15,726.92

Finding the Fourth Proportional to 27,663.88, 38,176.16 and 15,726.92

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Solution

The fourth proportional to 27,663.88, 38,176.16 and 15,726.92 is: 21,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.88 : 38,176.16 = 15,726.92 : x
  2. Step 2: Convert to fraction form
    27,663.88/38,176.16 = 15,726.92/x
  3. Step 3: Cross multiply
    27,663.88x = 38,176.16 × 15,726.92
  4. Step 4: Simplify right side
    27,663.88x = 600,393,414.23
  5. Step 5: Solve for x
    x = 600,393,414.23/27,663.88
  6. Step 6: Final answer
    x = 21,703.15

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Half scale
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Double scale
Find fourth proportional to 27,664.88, 38,177.54 and 15,727.92
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.