Home / 27,729.34-38,270.45-15,793.79

Finding the Fourth Proportional to 27,729.34, 38,270.45 and 15,793.79

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Solution

The fourth proportional to 27,729.34, 38,270.45 and 15,793.79 is: 21,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.34 : 38,270.45 = 15,793.79 : x
  2. Step 2: Convert to fraction form
    27,729.34/38,270.45 = 15,793.79/x
  3. Step 3: Cross multiply
    27,729.34x = 38,270.45 × 15,793.79
  4. Step 4: Simplify right side
    27,729.34x = 604,435,254.22
  5. Step 5: Solve for x
    x = 604,435,254.22/27,729.34
  6. Step 6: Final answer
    x = 21,797.68

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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.