Home / 28,429.70-39,232.89-16,500.02

Finding the Fourth Proportional to 28,429.70, 39,232.89 and 16,500.02

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Solution

The fourth proportional to 28,429.70, 39,232.89 and 16,500.02 is: 22,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.70 : 39,232.89 = 16,500.02 : x
  2. Step 2: Convert to fraction form
    28,429.70/39,232.89 = 16,500.02/x
  3. Step 3: Cross multiply
    28,429.70x = 39,232.89 × 16,500.02
  4. Step 4: Simplify right side
    28,429.70x = 647,343,469.66
  5. Step 5: Solve for x
    x = 647,343,469.66/28,429.70
  6. Step 6: Final answer
    x = 22,769.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.