Home / 15,540.82-21,439.91-10,827.83

Finding the Fourth Proportional to 15,540.82, 21,439.91 and 10,827.83

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Solution

The fourth proportional to 15,540.82, 21,439.91 and 10,827.83 is: 14,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.82 : 21,439.91 = 10,827.83 : x
  2. Step 2: Convert to fraction form
    15,540.82/21,439.91 = 10,827.83/x
  3. Step 3: Cross multiply
    15,540.82x = 21,439.91 × 10,827.83
  4. Step 4: Simplify right side
    15,540.82x = 232,147,646.56
  5. Step 5: Solve for x
    x = 232,147,646.56/15,540.82
  6. Step 6: Final answer
    x = 14,937.93

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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.