Home / 27,881.01-38,475.32-15,305.67

Finding the Fourth Proportional to 27,881.01, 38,475.32 and 15,305.67

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Solution

The fourth proportional to 27,881.01, 38,475.32 and 15,305.67 is: 21,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.01 : 38,475.32 = 15,305.67 : x
  2. Step 2: Convert to fraction form
    27,881.01/38,475.32 = 15,305.67/x
  3. Step 3: Cross multiply
    27,881.01x = 38,475.32 × 15,305.67
  4. Step 4: Simplify right side
    27,881.01x = 588,890,474.54
  5. Step 5: Solve for x
    x = 588,890,474.54/27,881.01
  6. Step 6: Final answer
    x = 21,121.56

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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.