Home / 21,232.85-31,848.12-8,752.64

Finding the Fourth Proportional to 21,232.85, 31,848.12 and 8,752.64

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Solution

The fourth proportional to 21,232.85, 31,848.12 and 8,752.64 is: 13,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.85 : 31,848.12 = 8,752.64 : x
  2. Step 2: Convert to fraction form
    21,232.85/31,848.12 = 8,752.64/x
  3. Step 3: Cross multiply
    21,232.85x = 31,848.12 × 8,752.64
  4. Step 4: Simplify right side
    21,232.85x = 278,755,129.04
  5. Step 5: Solve for x
    x = 278,755,129.04/21,232.85
  6. Step 6: Final answer
    x = 13,128.48

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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.