Home / 31,092.71-42,908.08-17,664.70

Finding the Fourth Proportional to 31,092.71, 42,908.08 and 17,664.70

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Solution

The fourth proportional to 31,092.71, 42,908.08 and 17,664.70 is: 24,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,092.71 : 42,908.08 = 17,664.70 : x
  2. Step 2: Convert to fraction form
    31,092.71/42,908.08 = 17,664.70/x
  3. Step 3: Cross multiply
    31,092.71x = 42,908.08 × 17,664.70
  4. Step 4: Simplify right side
    31,092.71x = 757,958,057.91
  5. Step 5: Solve for x
    x = 757,958,057.91/31,092.71
  6. Step 6: Final answer
    x = 24,377.36

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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.