Home / 36,044.19-49,740.78-20,128.68

Finding the Fourth Proportional to 36,044.19, 49,740.78 and 20,128.68

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Solution

The fourth proportional to 36,044.19, 49,740.78 and 20,128.68 is: 27,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,044.19 : 49,740.78 = 20,128.68 : x
  2. Step 2: Convert to fraction form
    36,044.19/49,740.78 = 20,128.68/x
  3. Step 3: Cross multiply
    36,044.19x = 49,740.78 × 20,128.68
  4. Step 4: Simplify right side
    36,044.19x = 1,001,216,243.57
  5. Step 5: Solve for x
    x = 1,001,216,243.57/36,044.19
  6. Step 6: Final answer
    x = 27,777.47

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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.