Home / 19,737.57-27,229.64-12,929.66

Finding the Fourth Proportional to 19,737.57, 27,229.64 and 12,929.66

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Solution

The fourth proportional to 19,737.57, 27,229.64 and 12,929.66 is: 17,837.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,737.57 : 27,229.64 = 12,929.66 : x
  2. Step 2: Convert to fraction form
    19,737.57/27,229.64 = 12,929.66/x
  3. Step 3: Cross multiply
    19,737.57x = 27,229.64 × 12,929.66
  4. Step 4: Simplify right side
    19,737.57x = 352,069,786.33
  5. Step 5: Solve for x
    x = 352,069,786.33/19,737.57
  6. Step 6: Final answer
    x = 17,837.54

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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.