Home / 27,677.85-38,194.14-15,577.66

Finding the Fourth Proportional to 27,677.85, 38,194.14 and 15,577.66

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Solution

The fourth proportional to 27,677.85, 38,194.14 and 15,577.66 is: 21,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,677.85 : 38,194.14 = 15,577.66 : x
  2. Step 2: Convert to fraction form
    27,677.85/38,194.14 = 15,577.66/x
  3. Step 3: Cross multiply
    27,677.85x = 38,194.14 × 15,577.66
  4. Step 4: Simplify right side
    27,677.85x = 594,975,326.91
  5. Step 5: Solve for x
    x = 594,975,326.91/27,677.85
  6. Step 6: Final answer
    x = 21,496.44

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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.