Home / 31,398.70-43,331.12-17,974.26

Finding the Fourth Proportional to 31,398.70, 43,331.12 and 17,974.26

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Solution

The fourth proportional to 31,398.70, 43,331.12 and 17,974.26 is: 24,805.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.70 : 43,331.12 = 17,974.26 : x
  2. Step 2: Convert to fraction form
    31,398.70/43,331.12 = 17,974.26/x
  3. Step 3: Cross multiply
    31,398.70x = 43,331.12 × 17,974.26
  4. Step 4: Simplify right side
    31,398.70x = 778,844,816.97
  5. Step 5: Solve for x
    x = 778,844,816.97/31,398.70
  6. Step 6: Final answer
    x = 24,805.00

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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.