Home / 21,380.49-32,073.75-6,590.61

Finding the Fourth Proportional to 21,380.49, 32,073.75 and 6,590.61

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Solution

The fourth proportional to 21,380.49, 32,073.75 and 6,590.61 is: 9,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.49 : 32,073.75 = 6,590.61 : x
  2. Step 2: Convert to fraction form
    21,380.49/32,073.75 = 6,590.61/x
  3. Step 3: Cross multiply
    21,380.49x = 32,073.75 × 6,590.61
  4. Step 4: Simplify right side
    21,380.49x = 211,385,577.49
  5. Step 5: Solve for x
    x = 211,385,577.49/21,380.49
  6. Step 6: Final answer
    x = 9,886.84

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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.