Home / 31,300.94-43,196.40-17,153.78

Finding the Fourth Proportional to 31,300.94, 43,196.40 and 17,153.78

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Solution

The fourth proportional to 31,300.94, 43,196.40 and 17,153.78 is: 23,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,300.94 : 43,196.40 = 17,153.78 : x
  2. Step 2: Convert to fraction form
    31,300.94/43,196.40 = 17,153.78/x
  3. Step 3: Cross multiply
    31,300.94x = 43,196.40 × 17,153.78
  4. Step 4: Simplify right side
    31,300.94x = 740,981,456.62
  5. Step 5: Solve for x
    x = 740,981,456.62/31,300.94
  6. Step 6: Final answer
    x = 23,672.82

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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.