Home / 36,007.80-49,699.67-21,872.49

Finding the Fourth Proportional to 36,007.80, 49,699.67 and 21,872.49

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Solution

The fourth proportional to 36,007.80, 49,699.67 and 21,872.49 is: 30,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,007.80 : 49,699.67 = 21,872.49 : x
  2. Step 2: Convert to fraction form
    36,007.80/49,699.67 = 21,872.49/x
  3. Step 3: Cross multiply
    36,007.80x = 49,699.67 × 21,872.49
  4. Step 4: Simplify right side
    36,007.80x = 1,087,055,535.08
  5. Step 5: Solve for x
    x = 1,087,055,535.08/36,007.80
  6. Step 6: Final answer
    x = 30,189.45

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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.