Home / 20,797.38-28,700.32-11,365.94

Finding the Fourth Proportional to 20,797.38, 28,700.32 and 11,365.94

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Solution

The fourth proportional to 20,797.38, 28,700.32 and 11,365.94 is: 15,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.38 : 28,700.32 = 11,365.94 : x
  2. Step 2: Convert to fraction form
    20,797.38/28,700.32 = 11,365.94/x
  3. Step 3: Cross multiply
    20,797.38x = 28,700.32 × 11,365.94
  4. Step 4: Simplify right side
    20,797.38x = 326,206,058.27
  5. Step 5: Solve for x
    x = 326,206,058.27/20,797.38
  6. Step 6: Final answer
    x = 15,684.96

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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.