Home / 36,921.57-55,376.89-11,963.80

Finding the Fourth Proportional to 36,921.57, 55,376.89 and 11,963.80

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Solution

The fourth proportional to 36,921.57, 55,376.89 and 11,963.80 is: 17,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.57 : 55,376.89 = 11,963.80 : x
  2. Step 2: Convert to fraction form
    36,921.57/55,376.89 = 11,963.80/x
  3. Step 3: Cross multiply
    36,921.57x = 55,376.89 × 11,963.80
  4. Step 4: Simplify right side
    36,921.57x = 662,518,109.54
  5. Step 5: Solve for x
    x = 662,518,109.54/36,921.57
  6. Step 6: Final answer
    x = 17,943.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.