Home / 28,091.11-38,764.97-15,344.64

Finding the Fourth Proportional to 28,091.11, 38,764.97 and 15,344.64

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Solution

The fourth proportional to 28,091.11, 38,764.97 and 15,344.64 is: 21,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.11 : 38,764.97 = 15,344.64 : x
  2. Step 2: Convert to fraction form
    28,091.11/38,764.97 = 15,344.64/x
  3. Step 3: Cross multiply
    28,091.11x = 38,764.97 × 15,344.64
  4. Step 4: Simplify right side
    28,091.11x = 594,834,238.71
  5. Step 5: Solve for x
    x = 594,834,238.71/28,091.11
  6. Step 6: Final answer
    x = 21,175.18

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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.