Home / 21,483.84-32,163.66-12,572.04

Finding the Fourth Proportional to 21,483.84, 32,163.66 and 12,572.04

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Solution

The fourth proportional to 21,483.84, 32,163.66 and 12,572.04 is: 18,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.84 : 32,163.66 = 12,572.04 : x
  2. Step 2: Convert to fraction form
    21,483.84/32,163.66 = 12,572.04/x
  3. Step 3: Cross multiply
    21,483.84x = 32,163.66 × 12,572.04
  4. Step 4: Simplify right side
    21,483.84x = 404,362,820.07
  5. Step 5: Solve for x
    x = 404,362,820.07/21,483.84
  6. Step 6: Final answer
    x = 18,821.72

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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.