Home / 21,414.04-32,120.10-9,718.84

Finding the Fourth Proportional to 21,414.04, 32,120.10 and 9,718.84

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Solution

The fourth proportional to 21,414.04, 32,120.10 and 9,718.84 is: 14,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.04 : 32,120.10 = 9,718.84 : x
  2. Step 2: Convert to fraction form
    21,414.04/32,120.10 = 9,718.84/x
  3. Step 3: Cross multiply
    21,414.04x = 32,120.10 × 9,718.84
  4. Step 4: Simplify right side
    21,414.04x = 312,170,112.68
  5. Step 5: Solve for x
    x = 312,170,112.68/21,414.04
  6. Step 6: Final answer
    x = 14,577.82

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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.