Home / 39,861.26-55,007.36-21,956.22

Finding the Fourth Proportional to 39,861.26, 55,007.36 and 21,956.22

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Solution

The fourth proportional to 39,861.26, 55,007.36 and 21,956.22 is: 30,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.26 : 55,007.36 = 21,956.22 : x
  2. Step 2: Convert to fraction form
    39,861.26/55,007.36 = 21,956.22/x
  3. Step 3: Cross multiply
    39,861.26x = 55,007.36 × 21,956.22
  4. Step 4: Simplify right side
    39,861.26x = 1,207,753,697.78
  5. Step 5: Solve for x
    x = 1,207,753,697.78/39,861.26
  6. Step 6: Final answer
    x = 30,298.93

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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.