Home / 36,220-49,983.78-21,123.13

Finding the Fourth Proportional to 36,220, 49,983.78 and 21,123.13

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Solution

The fourth proportional to 36,220, 49,983.78 and 21,123.13 is: 29,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,220 : 49,983.78 = 21,123.13 : x
  2. Step 2: Convert to fraction form
    36,220/49,983.78 = 21,123.13/x
  3. Step 3: Cross multiply
    36,220x = 49,983.78 × 21,123.13
  4. Step 4: Simplify right side
    36,220x = 1,055,813,882.83
  5. Step 5: Solve for x
    x = 1,055,813,882.83/36,220
  6. Step 6: Final answer
    x = 29,150.02

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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.