Home / 33,121.86-49,705.10-12,345.36

Finding the Fourth Proportional to 33,121.86, 49,705.10 and 12,345.36

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Solution

The fourth proportional to 33,121.86, 49,705.10 and 12,345.36 is: 18,526.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.86 : 49,705.10 = 12,345.36 : x
  2. Step 2: Convert to fraction form
    33,121.86/49,705.10 = 12,345.36/x
  3. Step 3: Cross multiply
    33,121.86x = 49,705.10 × 12,345.36
  4. Step 4: Simplify right side
    33,121.86x = 613,627,353.34
  5. Step 5: Solve for x
    x = 613,627,353.34/33,121.86
  6. Step 6: Final answer
    x = 18,526.36

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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.