Home / 21,410.84-32,120.30-8,264.52

Finding the Fourth Proportional to 21,410.84, 32,120.30 and 8,264.52

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Solution

The fourth proportional to 21,410.84, 32,120.30 and 8,264.52 is: 12,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.84 : 32,120.30 = 8,264.52 : x
  2. Step 2: Convert to fraction form
    21,410.84/32,120.30 = 8,264.52/x
  3. Step 3: Cross multiply
    21,410.84x = 32,120.30 × 8,264.52
  4. Step 4: Simplify right side
    21,410.84x = 265,458,861.76
  5. Step 5: Solve for x
    x = 265,458,861.76/21,410.84
  6. Step 6: Final answer
    x = 12,398.34

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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.