Home / 19,625.76-29,451.12-7,144.56

Finding the Fourth Proportional to 19,625.76, 29,451.12 and 7,144.56

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Solution

The fourth proportional to 19,625.76, 29,451.12 and 7,144.56 is: 10,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.76 : 29,451.12 = 7,144.56 : x
  2. Step 2: Convert to fraction form
    19,625.76/29,451.12 = 7,144.56/x
  3. Step 3: Cross multiply
    19,625.76x = 29,451.12 × 7,144.56
  4. Step 4: Simplify right side
    19,625.76x = 210,415,293.91
  5. Step 5: Solve for x
    x = 210,415,293.91/19,625.76
  6. Step 6: Final answer
    x = 10,721.38

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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.