Home / 21,825.32-32,752.32-11,971.50

Finding the Fourth Proportional to 21,825.32, 32,752.32 and 11,971.50

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Solution

The fourth proportional to 21,825.32, 32,752.32 and 11,971.50 is: 17,965.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,825.32 : 32,752.32 = 11,971.50 : x
  2. Step 2: Convert to fraction form
    21,825.32/32,752.32 = 11,971.50/x
  3. Step 3: Cross multiply
    21,825.32x = 32,752.32 × 11,971.50
  4. Step 4: Simplify right side
    21,825.32x = 392,094,398.88
  5. Step 5: Solve for x
    x = 392,094,398.88/21,825.32
  6. Step 6: Final answer
    x = 17,965.12

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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.