Home / 27,919.42-38,528.78-15,344.17

Finding the Fourth Proportional to 27,919.42, 38,528.78 and 15,344.17

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Solution

The fourth proportional to 27,919.42, 38,528.78 and 15,344.17 is: 21,174.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.42 : 38,528.78 = 15,344.17 : x
  2. Step 2: Convert to fraction form
    27,919.42/38,528.78 = 15,344.17/x
  3. Step 3: Cross multiply
    27,919.42x = 38,528.78 × 15,344.17
  4. Step 4: Simplify right side
    27,919.42x = 591,191,977.17
  5. Step 5: Solve for x
    x = 591,191,977.17/27,919.42
  6. Step 6: Final answer
    x = 21,174.94

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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.