Home / 22,720.74-34,086.58-7,138.36

Finding the Fourth Proportional to 22,720.74, 34,086.58 and 7,138.36

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Solution

The fourth proportional to 22,720.74, 34,086.58 and 7,138.36 is: 10,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.74 : 34,086.58 = 7,138.36 : x
  2. Step 2: Convert to fraction form
    22,720.74/34,086.58 = 7,138.36/x
  3. Step 3: Cross multiply
    22,720.74x = 34,086.58 × 7,138.36
  4. Step 4: Simplify right side
    22,720.74x = 243,322,279.21
  5. Step 5: Solve for x
    x = 243,322,279.21/22,720.74
  6. Step 6: Final answer
    x = 10,709.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.