Home / 21,088.03-31,620.08-8,593.43

Finding the Fourth Proportional to 21,088.03, 31,620.08 and 8,593.43

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Solution

The fourth proportional to 21,088.03, 31,620.08 and 8,593.43 is: 12,885.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.03 : 31,620.08 = 8,593.43 : x
  2. Step 2: Convert to fraction form
    21,088.03/31,620.08 = 8,593.43/x
  3. Step 3: Cross multiply
    21,088.03x = 31,620.08 × 8,593.43
  4. Step 4: Simplify right side
    21,088.03x = 271,724,759.12
  5. Step 5: Solve for x
    x = 271,724,759.12/21,088.03
  6. Step 6: Final answer
    x = 12,885.26

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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.