Home / 21,948.10-32,922.18-8,809.70

Finding the Fourth Proportional to 21,948.10, 32,922.18 and 8,809.70

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Solution

The fourth proportional to 21,948.10, 32,922.18 and 8,809.70 is: 13,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.10 : 32,922.18 = 8,809.70 : x
  2. Step 2: Convert to fraction form
    21,948.10/32,922.18 = 8,809.70/x
  3. Step 3: Cross multiply
    21,948.10x = 32,922.18 × 8,809.70
  4. Step 4: Simplify right side
    21,948.10x = 290,034,529.15
  5. Step 5: Solve for x
    x = 290,034,529.15/21,948.10
  6. Step 6: Final answer
    x = 13,214.56

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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.