Home / 27,948.87-38,561.18-16,612.61

Finding the Fourth Proportional to 27,948.87, 38,561.18 and 16,612.61

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Solution

The fourth proportional to 27,948.87, 38,561.18 and 16,612.61 is: 22,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,948.87 : 38,561.18 = 16,612.61 : x
  2. Step 2: Convert to fraction form
    27,948.87/38,561.18 = 16,612.61/x
  3. Step 3: Cross multiply
    27,948.87x = 38,561.18 × 16,612.61
  4. Step 4: Simplify right side
    27,948.87x = 640,601,568.61
  5. Step 5: Solve for x
    x = 640,601,568.61/27,948.87
  6. Step 6: Final answer
    x = 22,920.48

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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.