Home / 21,928.41-32,892.75-7,138.62

Finding the Fourth Proportional to 21,928.41, 32,892.75 and 7,138.62

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Solution

The fourth proportional to 21,928.41, 32,892.75 and 7,138.62 is: 10,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928.41 : 32,892.75 = 7,138.62 : x
  2. Step 2: Convert to fraction form
    21,928.41/32,892.75 = 7,138.62/x
  3. Step 3: Cross multiply
    21,928.41x = 32,892.75 × 7,138.62
  4. Step 4: Simplify right side
    21,928.41x = 234,808,843.01
  5. Step 5: Solve for x
    x = 234,808,843.01/21,928.41
  6. Step 6: Final answer
    x = 10,707.97

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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.