Home / 21,649.24-32,424.64-16,939.88

Finding the Fourth Proportional to 21,649.24, 32,424.64 and 16,939.88

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Solution

The fourth proportional to 21,649.24, 32,424.64 and 16,939.88 is: 25,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.24 : 32,424.64 = 16,939.88 : x
  2. Step 2: Convert to fraction form
    21,649.24/32,424.64 = 16,939.88/x
  3. Step 3: Cross multiply
    21,649.24x = 32,424.64 × 16,939.88
  4. Step 4: Simplify right side
    21,649.24x = 549,269,510.64
  5. Step 5: Solve for x
    x = 549,269,510.64/21,649.24
  6. Step 6: Final answer
    x = 25,371.31

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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.