Home / 36,015.88-49,712.08-20,911.80

Finding the Fourth Proportional to 36,015.88, 49,712.08 and 20,911.80

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Solution

The fourth proportional to 36,015.88, 49,712.08 and 20,911.80 is: 28,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015.88 : 49,712.08 = 20,911.80 : x
  2. Step 2: Convert to fraction form
    36,015.88/49,712.08 = 20,911.80/x
  3. Step 3: Cross multiply
    36,015.88x = 49,712.08 × 20,911.80
  4. Step 4: Simplify right side
    36,015.88x = 1,039,569,074.54
  5. Step 5: Solve for x
    x = 1,039,569,074.54/36,015.88
  6. Step 6: Final answer
    x = 28,864.19

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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.