Home / 28,213.38-38,934.81-16,279.20

Finding the Fourth Proportional to 28,213.38, 38,934.81 and 16,279.20

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Solution

The fourth proportional to 28,213.38, 38,934.81 and 16,279.20 is: 22,465.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.38 : 38,934.81 = 16,279.20 : x
  2. Step 2: Convert to fraction form
    28,213.38/38,934.81 = 16,279.20/x
  3. Step 3: Cross multiply
    28,213.38x = 38,934.81 × 16,279.20
  4. Step 4: Simplify right side
    28,213.38x = 633,827,558.95
  5. Step 5: Solve for x
    x = 633,827,558.95/28,213.38
  6. Step 6: Final answer
    x = 22,465.50

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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.