Home / 27,939.87-38,565.20-16,617.35

Finding the Fourth Proportional to 27,939.87, 38,565.20 and 16,617.35

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Solution

The fourth proportional to 27,939.87, 38,565.20 and 16,617.35 is: 22,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.87 : 38,565.20 = 16,617.35 : x
  2. Step 2: Convert to fraction form
    27,939.87/38,565.20 = 16,617.35/x
  3. Step 3: Cross multiply
    27,939.87x = 38,565.20 × 16,617.35
  4. Step 4: Simplify right side
    27,939.87x = 640,851,150.31
  5. Step 5: Solve for x
    x = 640,851,150.31/27,939.87
  6. Step 6: Final answer
    x = 22,936.80

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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.