Home / 27,677.78-38,194.98-15,101.72

Finding the Fourth Proportional to 27,677.78, 38,194.98 and 15,101.72

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Solution

The fourth proportional to 27,677.78, 38,194.98 and 15,101.72 is: 20,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,677.78 : 38,194.98 = 15,101.72 : x
  2. Step 2: Convert to fraction form
    27,677.78/38,194.98 = 15,101.72/x
  3. Step 3: Cross multiply
    27,677.78x = 38,194.98 × 15,101.72
  4. Step 4: Simplify right side
    27,677.78x = 576,809,893.37
  5. Step 5: Solve for x
    x = 576,809,893.37/27,677.78
  6. Step 6: Final answer
    x = 20,840.18

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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.