Home / 21,974.79-32,961.15-7,181.76

Finding the Fourth Proportional to 21,974.79, 32,961.15 and 7,181.76

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Solution

The fourth proportional to 21,974.79, 32,961.15 and 7,181.76 is: 10,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.79 : 32,961.15 = 7,181.76 : x
  2. Step 2: Convert to fraction form
    21,974.79/32,961.15 = 7,181.76/x
  3. Step 3: Cross multiply
    21,974.79x = 32,961.15 × 7,181.76
  4. Step 4: Simplify right side
    21,974.79x = 236,719,068.62
  5. Step 5: Solve for x
    x = 236,719,068.62/21,974.79
  6. Step 6: Final answer
    x = 10,772.30

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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.