Home / 27,663.36-38,175.26-15,726.70

Finding the Fourth Proportional to 27,663.36, 38,175.26 and 15,726.70

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Solution

The fourth proportional to 27,663.36, 38,175.26 and 15,726.70 is: 21,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.36 : 38,175.26 = 15,726.70 : x
  2. Step 2: Convert to fraction form
    27,663.36/38,175.26 = 15,726.70/x
  3. Step 3: Cross multiply
    27,663.36x = 38,175.26 × 15,726.70
  4. Step 4: Simplify right side
    27,663.36x = 600,370,861.44
  5. Step 5: Solve for x
    x = 600,370,861.44/27,663.36
  6. Step 6: Final answer
    x = 21,702.75

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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.