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Finding the Fourth Proportional to 36,642.78, 50,568.03 and 20,726.91

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Solution

The fourth proportional to 36,642.78, 50,568.03 and 20,726.91 is: 28,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,642.78 : 50,568.03 = 20,726.91 : x
  2. Step 2: Convert to fraction form
    36,642.78/50,568.03 = 20,726.91/x
  3. Step 3: Cross multiply
    36,642.78x = 50,568.03 × 20,726.91
  4. Step 4: Simplify right side
    36,642.78x = 1,048,119,006.69
  5. Step 5: Solve for x
    x = 1,048,119,006.69/36,642.78
  6. Step 6: Final answer
    x = 28,603.70

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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.