Home / 39,914.08-55,081.81-22,009.72

Finding the Fourth Proportional to 39,914.08, 55,081.81 and 22,009.72

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Solution

The fourth proportional to 39,914.08, 55,081.81 and 22,009.72 is: 30,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,914.08 : 55,081.81 = 22,009.72 : x
  2. Step 2: Convert to fraction form
    39,914.08/55,081.81 = 22,009.72/x
  3. Step 3: Cross multiply
    39,914.08x = 55,081.81 × 22,009.72
  4. Step 4: Simplify right side
    39,914.08x = 1,212,334,939.78
  5. Step 5: Solve for x
    x = 1,212,334,939.78/39,914.08
  6. Step 6: Final answer
    x = 30,373.62

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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.