Home / 27,908.18-38,513.33-15,161.14

Finding the Fourth Proportional to 27,908.18, 38,513.33 and 15,161.14

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Solution

The fourth proportional to 27,908.18, 38,513.33 and 15,161.14 is: 20,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.18 : 38,513.33 = 15,161.14 : x
  2. Step 2: Convert to fraction form
    27,908.18/38,513.33 = 15,161.14/x
  3. Step 3: Cross multiply
    27,908.18x = 38,513.33 × 15,161.14
  4. Step 4: Simplify right side
    27,908.18x = 583,905,988.00
  5. Step 5: Solve for x
    x = 583,905,988.00/27,908.18
  6. Step 6: Final answer
    x = 20,922.40

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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.