Home / 20,087.44-27,718.72-11,134.76

Finding the Fourth Proportional to 20,087.44, 27,718.72 and 11,134.76

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Solution

The fourth proportional to 20,087.44, 27,718.72 and 11,134.76 is: 15,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.44 : 27,718.72 = 11,134.76 : x
  2. Step 2: Convert to fraction form
    20,087.44/27,718.72 = 11,134.76/x
  3. Step 3: Cross multiply
    20,087.44x = 27,718.72 × 11,134.76
  4. Step 4: Simplify right side
    20,087.44x = 308,641,294.71
  5. Step 5: Solve for x
    x = 308,641,294.71/20,087.44
  6. Step 6: Final answer
    x = 15,364.89

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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.