Home / 29,279.27-40,405.05-15,850.22

Finding the Fourth Proportional to 29,279.27, 40,405.05 and 15,850.22

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Solution

The fourth proportional to 29,279.27, 40,405.05 and 15,850.22 is: 21,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,279.27 : 40,405.05 = 15,850.22 : x
  2. Step 2: Convert to fraction form
    29,279.27/40,405.05 = 15,850.22/x
  3. Step 3: Cross multiply
    29,279.27x = 40,405.05 × 15,850.22
  4. Step 4: Simplify right side
    29,279.27x = 640,428,953.37
  5. Step 5: Solve for x
    x = 640,428,953.37/29,279.27
  6. Step 6: Final answer
    x = 21,873.12

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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.