Home / 27,917.28-38,526-15,170.56

Finding the Fourth Proportional to 27,917.28, 38,526 and 15,170.56

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Solution

The fourth proportional to 27,917.28, 38,526 and 15,170.56 is: 20,935.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.28 : 38,526 = 15,170.56 : x
  2. Step 2: Convert to fraction form
    27,917.28/38,526 = 15,170.56/x
  3. Step 3: Cross multiply
    27,917.28x = 38,526 × 15,170.56
  4. Step 4: Simplify right side
    27,917.28x = 584,460,994.56
  5. Step 5: Solve for x
    x = 584,460,994.56/27,917.28
  6. Step 6: Final answer
    x = 20,935.46

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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.