Home / 21,914.92-30,240.66-12,355.48

Finding the Fourth Proportional to 21,914.92, 30,240.66 and 12,355.48

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Solution

The fourth proportional to 21,914.92, 30,240.66 and 12,355.48 is: 17,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.92 : 30,240.66 = 12,355.48 : x
  2. Step 2: Convert to fraction form
    21,914.92/30,240.66 = 12,355.48/x
  3. Step 3: Cross multiply
    21,914.92x = 30,240.66 × 12,355.48
  4. Step 4: Simplify right side
    21,914.92x = 373,637,869.82
  5. Step 5: Solve for x
    x = 373,637,869.82/21,914.92
  6. Step 6: Final answer
    x = 17,049.47

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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.