Home / 28,335.68-39,100.82-16,399.76

Finding the Fourth Proportional to 28,335.68, 39,100.82 and 16,399.76

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Solution

The fourth proportional to 28,335.68, 39,100.82 and 16,399.76 is: 22,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.68 : 39,100.82 = 16,399.76 : x
  2. Step 2: Convert to fraction form
    28,335.68/39,100.82 = 16,399.76/x
  3. Step 3: Cross multiply
    28,335.68x = 39,100.82 × 16,399.76
  4. Step 4: Simplify right side
    28,335.68x = 641,243,909.30
  5. Step 5: Solve for x
    x = 641,243,909.30/28,335.68
  6. Step 6: Final answer
    x = 22,630.26

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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.