Home / 21,204.84-31,805.10-5,624.04

Finding the Fourth Proportional to 21,204.84, 31,805.10 and 5,624.04

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Solution

The fourth proportional to 21,204.84, 31,805.10 and 5,624.04 is: 8,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.84 : 31,805.10 = 5,624.04 : x
  2. Step 2: Convert to fraction form
    21,204.84/31,805.10 = 5,624.04/x
  3. Step 3: Cross multiply
    21,204.84x = 31,805.10 × 5,624.04
  4. Step 4: Simplify right side
    21,204.84x = 178,873,154.60
  5. Step 5: Solve for x
    x = 178,873,154.60/21,204.84
  6. Step 6: Final answer
    x = 8,435.49

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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.