Home / 27,729.28-38,266.43-15,154.03

Finding the Fourth Proportional to 27,729.28, 38,266.43 and 15,154.03

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Solution

The fourth proportional to 27,729.28, 38,266.43 and 15,154.03 is: 20,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.28 : 38,266.43 = 15,154.03 : x
  2. Step 2: Convert to fraction form
    27,729.28/38,266.43 = 15,154.03/x
  3. Step 3: Cross multiply
    27,729.28x = 38,266.43 × 15,154.03
  4. Step 4: Simplify right side
    27,729.28x = 579,890,600.28
  5. Step 5: Solve for x
    x = 579,890,600.28/27,729.28
  6. Step 6: Final answer
    x = 20,912.57

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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.