Home / 28,207.76-38,881.80-22,229.84

Finding the Fourth Proportional to 28,207.76, 38,881.80 and 22,229.84

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Solution

The fourth proportional to 28,207.76, 38,881.80 and 22,229.84 is: 30,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.76 : 38,881.80 = 22,229.84 : x
  2. Step 2: Convert to fraction form
    28,207.76/38,881.80 = 22,229.84/x
  3. Step 3: Cross multiply
    28,207.76x = 38,881.80 × 22,229.84
  4. Step 4: Simplify right side
    28,207.76x = 864,336,192.91
  5. Step 5: Solve for x
    x = 864,336,192.91/28,207.76
  6. Step 6: Final answer
    x = 30,641.79

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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.