Home / 34,288.22-47,318.64-20,138.24

Finding the Fourth Proportional to 34,288.22, 47,318.64 and 20,138.24

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Solution

The fourth proportional to 34,288.22, 47,318.64 and 20,138.24 is: 27,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,288.22 : 47,318.64 = 20,138.24 : x
  2. Step 2: Convert to fraction form
    34,288.22/47,318.64 = 20,138.24/x
  3. Step 3: Cross multiply
    34,288.22x = 47,318.64 × 20,138.24
  4. Step 4: Simplify right side
    34,288.22x = 952,914,128.79
  5. Step 5: Solve for x
    x = 952,914,128.79/34,288.22
  6. Step 6: Final answer
    x = 27,791.30

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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.