Home / 28,860.38-39,828.12-16,113.07

Finding the Fourth Proportional to 28,860.38, 39,828.12 and 16,113.07

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Solution

The fourth proportional to 28,860.38, 39,828.12 and 16,113.07 is: 22,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.38 : 39,828.12 = 16,113.07 : x
  2. Step 2: Convert to fraction form
    28,860.38/39,828.12 = 16,113.07/x
  3. Step 3: Cross multiply
    28,860.38x = 39,828.12 × 16,113.07
  4. Step 4: Simplify right side
    28,860.38x = 641,753,387.55
  5. Step 5: Solve for x
    x = 641,753,387.55/28,860.38
  6. Step 6: Final answer
    x = 22,236.48

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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.