Home / 27,654.78-38,163.63-15,079.53

Finding the Fourth Proportional to 27,654.78, 38,163.63 and 15,079.53

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Solution

The fourth proportional to 27,654.78, 38,163.63 and 15,079.53 is: 20,809.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,654.78 : 38,163.63 = 15,079.53 : x
  2. Step 2: Convert to fraction form
    27,654.78/38,163.63 = 15,079.53/x
  3. Step 3: Cross multiply
    27,654.78x = 38,163.63 × 15,079.53
  4. Step 4: Simplify right side
    27,654.78x = 575,489,603.49
  5. Step 5: Solve for x
    x = 575,489,603.49/27,654.78
  6. Step 6: Final answer
    x = 20,809.77

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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.