Home / 39,956.09-55,138.32-22,050.77

Finding the Fourth Proportional to 39,956.09, 55,138.32 and 22,050.77

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Solution

The fourth proportional to 39,956.09, 55,138.32 and 22,050.77 is: 30,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.09 : 55,138.32 = 22,050.77 : x
  2. Step 2: Convert to fraction form
    39,956.09/55,138.32 = 22,050.77/x
  3. Step 3: Cross multiply
    39,956.09x = 55,138.32 × 22,050.77
  4. Step 4: Simplify right side
    39,956.09x = 1,215,842,136.81
  5. Step 5: Solve for x
    x = 1,215,842,136.81/39,956.09
  6. Step 6: Final answer
    x = 30,429.46

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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.