Home / 36,780.90-50,761.38-21,678.24

Finding the Fourth Proportional to 36,780.90, 50,761.38 and 21,678.24

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Solution

The fourth proportional to 36,780.90, 50,761.38 and 21,678.24 is: 29,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.90 : 50,761.38 = 21,678.24 : x
  2. Step 2: Convert to fraction form
    36,780.90/50,761.38 = 21,678.24/x
  3. Step 3: Cross multiply
    36,780.90x = 50,761.38 × 21,678.24
  4. Step 4: Simplify right side
    36,780.90x = 1,100,417,378.37
  5. Step 5: Solve for x
    x = 1,100,417,378.37/36,780.90
  6. Step 6: Final answer
    x = 29,918.17

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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.