Home / 21,631.05-32,449.95-6,838.56

Finding the Fourth Proportional to 21,631.05, 32,449.95 and 6,838.56

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Solution

The fourth proportional to 21,631.05, 32,449.95 and 6,838.56 is: 10,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.05 : 32,449.95 = 6,838.56 : x
  2. Step 2: Convert to fraction form
    21,631.05/32,449.95 = 6,838.56/x
  3. Step 3: Cross multiply
    21,631.05x = 32,449.95 × 6,838.56
  4. Step 4: Simplify right side
    21,631.05x = 221,910,930.07
  5. Step 5: Solve for x
    x = 221,910,930.07/21,631.05
  6. Step 6: Final answer
    x = 10,258.91

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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.