Home / 21,286.05-31,928.99-6,494.93

Finding the Fourth Proportional to 21,286.05, 31,928.99 and 6,494.93

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Solution

The fourth proportional to 21,286.05, 31,928.99 and 6,494.93 is: 9,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.05 : 31,928.99 = 6,494.93 : x
  2. Step 2: Convert to fraction form
    21,286.05/31,928.99 = 6,494.93/x
  3. Step 3: Cross multiply
    21,286.05x = 31,928.99 × 6,494.93
  4. Step 4: Simplify right side
    21,286.05x = 207,376,362.90
  5. Step 5: Solve for x
    x = 207,376,362.90/21,286.05
  6. Step 6: Final answer
    x = 9,742.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.