Home / 20,068.64-30,118.32-8,971.04

Finding the Fourth Proportional to 20,068.64, 30,118.32 and 8,971.04

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Solution

The fourth proportional to 20,068.64, 30,118.32 and 8,971.04 is: 13,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.64 : 30,118.32 = 8,971.04 : x
  2. Step 2: Convert to fraction form
    20,068.64/30,118.32 = 8,971.04/x
  3. Step 3: Cross multiply
    20,068.64x = 30,118.32 × 8,971.04
  4. Step 4: Simplify right side
    20,068.64x = 270,192,653.45
  5. Step 5: Solve for x
    x = 270,192,653.45/20,068.64
  6. Step 6: Final answer
    x = 13,463.43

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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.