Home / 27,921.86-38,534.31-15,988.94

Finding the Fourth Proportional to 27,921.86, 38,534.31 and 15,988.94

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Solution

The fourth proportional to 27,921.86, 38,534.31 and 15,988.94 is: 22,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.86 : 38,534.31 = 15,988.94 : x
  2. Step 2: Convert to fraction form
    27,921.86/38,534.31 = 15,988.94/x
  3. Step 3: Cross multiply
    27,921.86x = 38,534.31 × 15,988.94
  4. Step 4: Simplify right side
    27,921.86x = 616,122,770.53
  5. Step 5: Solve for x
    x = 616,122,770.53/27,921.86
  6. Step 6: Final answer
    x = 22,065.96

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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.