Home / 22,111.65-30,462.17-15,385.73

Finding the Fourth Proportional to 22,111.65, 30,462.17 and 15,385.73

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Solution

The fourth proportional to 22,111.65, 30,462.17 and 15,385.73 is: 21,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,111.65 : 30,462.17 = 15,385.73 : x
  2. Step 2: Convert to fraction form
    22,111.65/30,462.17 = 15,385.73/x
  3. Step 3: Cross multiply
    22,111.65x = 30,462.17 × 15,385.73
  4. Step 4: Simplify right side
    22,111.65x = 468,682,493.59
  5. Step 5: Solve for x
    x = 468,682,493.59/22,111.65
  6. Step 6: Final answer
    x = 21,196.18

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Double scale
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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.