Home / 21,723.91-32,530.71-18,204.66

Finding the Fourth Proportional to 21,723.91, 32,530.71 and 18,204.66

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Solution

The fourth proportional to 21,723.91, 32,530.71 and 18,204.66 is: 27,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.91 : 32,530.71 = 18,204.66 : x
  2. Step 2: Convert to fraction form
    21,723.91/32,530.71 = 18,204.66/x
  3. Step 3: Cross multiply
    21,723.91x = 32,530.71 × 18,204.66
  4. Step 4: Simplify right side
    21,723.91x = 592,210,515.11
  5. Step 5: Solve for x
    x = 592,210,515.11/21,723.91
  6. Step 6: Final answer
    x = 27,260.78

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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.