Home / 28,213.69-38,937.68-16,115.98

Finding the Fourth Proportional to 28,213.69, 38,937.68 and 16,115.98

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Solution

The fourth proportional to 28,213.69, 38,937.68 and 16,115.98 is: 22,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.69 : 38,937.68 = 16,115.98 : x
  2. Step 2: Convert to fraction form
    28,213.69/38,937.68 = 16,115.98/x
  3. Step 3: Cross multiply
    28,213.69x = 38,937.68 × 16,115.98
  4. Step 4: Simplify right side
    28,213.69x = 627,518,969.47
  5. Step 5: Solve for x
    x = 627,518,969.47/28,213.69
  6. Step 6: Final answer
    x = 22,241.65

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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.