Home / 21,904.35-30,227.97-12,472.91

Finding the Fourth Proportional to 21,904.35, 30,227.97 and 12,472.91

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Solution

The fourth proportional to 21,904.35, 30,227.97 and 12,472.91 is: 17,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.35 : 30,227.97 = 12,472.91 : x
  2. Step 2: Convert to fraction form
    21,904.35/30,227.97 = 12,472.91/x
  3. Step 3: Cross multiply
    21,904.35x = 30,227.97 × 12,472.91
  4. Step 4: Simplify right side
    21,904.35x = 377,030,688.12
  5. Step 5: Solve for x
    x = 377,030,688.12/21,904.35
  6. Step 6: Final answer
    x = 17,212.60

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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.