Home / 21,114.40-31,672.62-5,532.04

Finding the Fourth Proportional to 21,114.40, 31,672.62 and 5,532.04

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Solution

The fourth proportional to 21,114.40, 31,672.62 and 5,532.04 is: 8,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,114.40 : 31,672.62 = 5,532.04 : x
  2. Step 2: Convert to fraction form
    21,114.40/31,672.62 = 5,532.04/x
  3. Step 3: Cross multiply
    21,114.40x = 31,672.62 × 5,532.04
  4. Step 4: Simplify right side
    21,114.40x = 175,214,200.74
  5. Step 5: Solve for x
    x = 175,214,200.74/21,114.40
  6. Step 6: Final answer
    x = 8,298.33

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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.