Home / 21,518.10-32,280.79-6,724.11

Finding the Fourth Proportional to 21,518.10, 32,280.79 and 6,724.11

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Solution

The fourth proportional to 21,518.10, 32,280.79 and 6,724.11 is: 10,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.10 : 32,280.79 = 6,724.11 : x
  2. Step 2: Convert to fraction form
    21,518.10/32,280.79 = 6,724.11/x
  3. Step 3: Cross multiply
    21,518.10x = 32,280.79 × 6,724.11
  4. Step 4: Simplify right side
    21,518.10x = 217,059,421.44
  5. Step 5: Solve for x
    x = 217,059,421.44/21,518.10
  6. Step 6: Final answer
    x = 10,087.29

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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.