Home / 21,261.37-31,882.85-6,466.88

Finding the Fourth Proportional to 21,261.37, 31,882.85 and 6,466.88

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Solution

The fourth proportional to 21,261.37, 31,882.85 and 6,466.88 is: 9,697.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.37 : 31,882.85 = 6,466.88 : x
  2. Step 2: Convert to fraction form
    21,261.37/31,882.85 = 6,466.88/x
  3. Step 3: Cross multiply
    21,261.37x = 31,882.85 × 6,466.88
  4. Step 4: Simplify right side
    21,261.37x = 206,182,565.01
  5. Step 5: Solve for x
    x = 206,182,565.01/21,261.37
  6. Step 6: Final answer
    x = 9,697.52

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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.