Home / 39,816.32-54,946.78-21,910.82

Finding the Fourth Proportional to 39,816.32, 54,946.78 and 21,910.82

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Solution

The fourth proportional to 39,816.32, 54,946.78 and 21,910.82 is: 30,237.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.32 : 54,946.78 = 21,910.82 : x
  2. Step 2: Convert to fraction form
    39,816.32/54,946.78 = 21,910.82/x
  3. Step 3: Cross multiply
    39,816.32x = 54,946.78 × 21,910.82
  4. Step 4: Simplify right side
    39,816.32x = 1,203,929,006.16
  5. Step 5: Solve for x
    x = 1,203,929,006.16/39,816.32
  6. Step 6: Final answer
    x = 30,237.07

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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.