Home / 21,775.11-32,660.25-5,981.34

Finding the Fourth Proportional to 21,775.11, 32,660.25 and 5,981.34

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Solution

The fourth proportional to 21,775.11, 32,660.25 and 5,981.34 is: 8,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.11 : 32,660.25 = 5,981.34 : x
  2. Step 2: Convert to fraction form
    21,775.11/32,660.25 = 5,981.34/x
  3. Step 3: Cross multiply
    21,775.11x = 32,660.25 × 5,981.34
  4. Step 4: Simplify right side
    21,775.11x = 195,352,059.74
  5. Step 5: Solve for x
    x = 195,352,059.74/21,775.11
  6. Step 6: Final answer
    x = 8,971.35

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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.