Home / 36,019.88-49,699.50-20,903.78

Finding the Fourth Proportional to 36,019.88, 49,699.50 and 20,903.78

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Solution

The fourth proportional to 36,019.88, 49,699.50 and 20,903.78 is: 28,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,019.88 : 49,699.50 = 20,903.78 : x
  2. Step 2: Convert to fraction form
    36,019.88/49,699.50 = 20,903.78/x
  3. Step 3: Cross multiply
    36,019.88x = 49,699.50 × 20,903.78
  4. Step 4: Simplify right side
    36,019.88x = 1,038,907,414.11
  5. Step 5: Solve for x
    x = 1,038,907,414.11/36,019.88
  6. Step 6: Final answer
    x = 28,842.61

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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.