Home / 21,088.62-31,622.60-7,043.83

Finding the Fourth Proportional to 21,088.62, 31,622.60 and 7,043.83

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Solution

The fourth proportional to 21,088.62, 31,622.60 and 7,043.83 is: 10,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.62 : 31,622.60 = 7,043.83 : x
  2. Step 2: Convert to fraction form
    21,088.62/31,622.60 = 7,043.83/x
  3. Step 3: Cross multiply
    21,088.62x = 31,622.60 × 7,043.83
  4. Step 4: Simplify right side
    21,088.62x = 222,744,157.11
  5. Step 5: Solve for x
    x = 222,744,157.11/21,088.62
  6. Step 6: Final answer
    x = 10,562.29

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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.