Home / 21,658.62-29,888.66-12,227.58

Finding the Fourth Proportional to 21,658.62, 29,888.66 and 12,227.58

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Solution

The fourth proportional to 21,658.62, 29,888.66 and 12,227.58 is: 16,873.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.62 : 29,888.66 = 12,227.58 : x
  2. Step 2: Convert to fraction form
    21,658.62/29,888.66 = 12,227.58/x
  3. Step 3: Cross multiply
    21,658.62x = 29,888.66 × 12,227.58
  4. Step 4: Simplify right side
    21,658.62x = 365,465,981.24
  5. Step 5: Solve for x
    x = 365,465,981.24/21,658.62
  6. Step 6: Final answer
    x = 16,873.93

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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.