Home / 27,677.06-38,194.16-15,740.42

Finding the Fourth Proportional to 27,677.06, 38,194.16 and 15,740.42

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Solution

The fourth proportional to 27,677.06, 38,194.16 and 15,740.42 is: 21,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,677.06 : 38,194.16 = 15,740.42 : x
  2. Step 2: Convert to fraction form
    27,677.06/38,194.16 = 15,740.42/x
  3. Step 3: Cross multiply
    27,677.06x = 38,194.16 × 15,740.42
  4. Step 4: Simplify right side
    27,677.06x = 601,192,119.95
  5. Step 5: Solve for x
    x = 601,192,119.95/27,677.06
  6. Step 6: Final answer
    x = 21,721.68

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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.