Home / 36,130.92-49,860.80-20,215.36

Finding the Fourth Proportional to 36,130.92, 49,860.80 and 20,215.36

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Solution

The fourth proportional to 36,130.92, 49,860.80 and 20,215.36 is: 27,897.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.92 : 49,860.80 = 20,215.36 : x
  2. Step 2: Convert to fraction form
    36,130.92/49,860.80 = 20,215.36/x
  3. Step 3: Cross multiply
    36,130.92x = 49,860.80 × 20,215.36
  4. Step 4: Simplify right side
    36,130.92x = 1,007,954,058.94
  5. Step 5: Solve for x
    x = 1,007,954,058.94/36,130.92
  6. Step 6: Final answer
    x = 27,897.27

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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.