Home / 27,721.88-38,242.48-19,657.25

Finding the Fourth Proportional to 27,721.88, 38,242.48 and 19,657.25

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Solution

The fourth proportional to 27,721.88, 38,242.48 and 19,657.25 is: 27,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.88 : 38,242.48 = 19,657.25 : x
  2. Step 2: Convert to fraction form
    27,721.88/38,242.48 = 19,657.25/x
  3. Step 3: Cross multiply
    27,721.88x = 38,242.48 × 19,657.25
  4. Step 4: Simplify right side
    27,721.88x = 751,741,989.98
  5. Step 5: Solve for x
    x = 751,741,989.98/27,721.88
  6. Step 6: Final answer
    x = 27,117.28

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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.