Home / 27,666.11-38,179.04-15,729.45

Finding the Fourth Proportional to 27,666.11, 38,179.04 and 15,729.45

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Solution

The fourth proportional to 27,666.11, 38,179.04 and 15,729.45 is: 21,706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.11 : 38,179.04 = 15,729.45 : x
  2. Step 2: Convert to fraction form
    27,666.11/38,179.04 = 15,729.45/x
  3. Step 3: Cross multiply
    27,666.11x = 38,179.04 × 15,729.45
  4. Step 4: Simplify right side
    27,666.11x = 600,535,300.73
  5. Step 5: Solve for x
    x = 600,535,300.73/27,666.11
  6. Step 6: Final answer
    x = 21,706.53

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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.