Home / 21,743.19-32,621.29-12,502.71

Finding the Fourth Proportional to 21,743.19, 32,621.29 and 12,502.71

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Solution

The fourth proportional to 21,743.19, 32,621.29 and 12,502.71 is: 18,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.19 : 32,621.29 = 12,502.71 : x
  2. Step 2: Convert to fraction form
    21,743.19/32,621.29 = 12,502.71/x
  3. Step 3: Cross multiply
    21,743.19x = 32,621.29 × 12,502.71
  4. Step 4: Simplify right side
    21,743.19x = 407,854,497.44
  5. Step 5: Solve for x
    x = 407,854,497.44/21,743.19
  6. Step 6: Final answer
    x = 18,757.80

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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.