Home / 36,721.71-50,674.97-20,811.28

Finding the Fourth Proportional to 36,721.71, 50,674.97 and 20,811.28

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Solution

The fourth proportional to 36,721.71, 50,674.97 and 20,811.28 is: 28,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.71 : 50,674.97 = 20,811.28 : x
  2. Step 2: Convert to fraction form
    36,721.71/50,674.97 = 20,811.28/x
  3. Step 3: Cross multiply
    36,721.71x = 50,674.97 × 20,811.28
  4. Step 4: Simplify right side
    36,721.71x = 1,054,610,989.66
  5. Step 5: Solve for x
    x = 1,054,610,989.66/36,721.71
  6. Step 6: Final answer
    x = 28,719.01

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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.