Home / 21,864.60-32,829.30-16,939.80

Finding the Fourth Proportional to 21,864.60, 32,829.30 and 16,939.80

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Solution

The fourth proportional to 21,864.60, 32,829.30 and 16,939.80 is: 25,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.60 : 32,829.30 = 16,939.80 : x
  2. Step 2: Convert to fraction form
    21,864.60/32,829.30 = 16,939.80/x
  3. Step 3: Cross multiply
    21,864.60x = 32,829.30 × 16,939.80
  4. Step 4: Simplify right side
    21,864.60x = 556,121,776.14
  5. Step 5: Solve for x
    x = 556,121,776.14/21,864.60
  6. Step 6: Final answer
    x = 25,434.80

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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.