Home / 28,220.94-38,934.27-16,279.92

Finding the Fourth Proportional to 28,220.94, 38,934.27 and 16,279.92

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Solution

The fourth proportional to 28,220.94, 38,934.27 and 16,279.92 is: 22,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.94 : 38,934.27 = 16,279.92 : x
  2. Step 2: Convert to fraction form
    28,220.94/38,934.27 = 16,279.92/x
  3. Step 3: Cross multiply
    28,220.94x = 38,934.27 × 16,279.92
  4. Step 4: Simplify right side
    28,220.94x = 633,846,800.86
  5. Step 5: Solve for x
    x = 633,846,800.86/28,220.94
  6. Step 6: Final answer
    x = 22,460.16

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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.