Home / 19,029.78-28,557.57-6,717.78

Finding the Fourth Proportional to 19,029.78, 28,557.57 and 6,717.78

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Solution

The fourth proportional to 19,029.78, 28,557.57 and 6,717.78 is: 10,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.78 : 28,557.57 = 6,717.78 : x
  2. Step 2: Convert to fraction form
    19,029.78/28,557.57 = 6,717.78/x
  3. Step 3: Cross multiply
    19,029.78x = 28,557.57 × 6,717.78
  4. Step 4: Simplify right side
    19,029.78x = 191,843,472.59
  5. Step 5: Solve for x
    x = 191,843,472.59/19,029.78
  6. Step 6: Final answer
    x = 10,081.22

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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.