Home / 21,726.36-32,589.80-6,935.20

Finding the Fourth Proportional to 21,726.36, 32,589.80 and 6,935.20

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Solution

The fourth proportional to 21,726.36, 32,589.80 and 6,935.20 is: 10,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.36 : 32,589.80 = 6,935.20 : x
  2. Step 2: Convert to fraction form
    21,726.36/32,589.80 = 6,935.20/x
  3. Step 3: Cross multiply
    21,726.36x = 32,589.80 × 6,935.20
  4. Step 4: Simplify right side
    21,726.36x = 226,016,780.96
  5. Step 5: Solve for x
    x = 226,016,780.96/21,726.36
  6. Step 6: Final answer
    x = 10,402.88

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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.