Home / 33,138.29-49,707.45-8,178.77

Finding the Fourth Proportional to 33,138.29, 49,707.45 and 8,178.77

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Solution

The fourth proportional to 33,138.29, 49,707.45 and 8,178.77 is: 12,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.29 : 49,707.45 = 8,178.77 : x
  2. Step 2: Convert to fraction form
    33,138.29/49,707.45 = 8,178.77/x
  3. Step 3: Cross multiply
    33,138.29x = 49,707.45 × 8,178.77
  4. Step 4: Simplify right side
    33,138.29x = 406,545,552.30
  5. Step 5: Solve for x
    x = 406,545,552.30/33,138.29
  6. Step 6: Final answer
    x = 12,268.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.