Home / 22,710.51-34,067.20-7,128.75

Finding the Fourth Proportional to 22,710.51, 34,067.20 and 7,128.75

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Solution

The fourth proportional to 22,710.51, 34,067.20 and 7,128.75 is: 10,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.51 : 34,067.20 = 7,128.75 : x
  2. Step 2: Convert to fraction form
    22,710.51/34,067.20 = 7,128.75/x
  3. Step 3: Cross multiply
    22,710.51x = 34,067.20 × 7,128.75
  4. Step 4: Simplify right side
    22,710.51x = 242,856,363.84
  5. Step 5: Solve for x
    x = 242,856,363.84/22,710.51
  6. Step 6: Final answer
    x = 10,693.57

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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.