Home / 21,872.16-32,821.68-10,023.84

Finding the Fourth Proportional to 21,872.16, 32,821.68 and 10,023.84

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Solution

The fourth proportional to 21,872.16, 32,821.68 and 10,023.84 is: 15,041.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872.16 : 32,821.68 = 10,023.84 : x
  2. Step 2: Convert to fraction form
    21,872.16/32,821.68 = 10,023.84/x
  3. Step 3: Cross multiply
    21,872.16x = 32,821.68 × 10,023.84
  4. Step 4: Simplify right side
    21,872.16x = 328,999,268.85
  5. Step 5: Solve for x
    x = 328,999,268.85/21,872.16
  6. Step 6: Final answer
    x = 15,041.92

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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.