Home / 21,435.84-32,151.60-5,855.04

Finding the Fourth Proportional to 21,435.84, 32,151.60 and 5,855.04

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Solution

The fourth proportional to 21,435.84, 32,151.60 and 5,855.04 is: 8,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.84 : 32,151.60 = 5,855.04 : x
  2. Step 2: Convert to fraction form
    21,435.84/32,151.60 = 5,855.04/x
  3. Step 3: Cross multiply
    21,435.84x = 32,151.60 × 5,855.04
  4. Step 4: Simplify right side
    21,435.84x = 188,248,904.06
  5. Step 5: Solve for x
    x = 188,248,904.06/21,435.84
  6. Step 6: Final answer
    x = 8,781.97

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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.