Home / 22,490.25-31,039.28-13,058.81

Finding the Fourth Proportional to 22,490.25, 31,039.28 and 13,058.81

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Solution

The fourth proportional to 22,490.25, 31,039.28 and 13,058.81 is: 18,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.25 : 31,039.28 = 13,058.81 : x
  2. Step 2: Convert to fraction form
    22,490.25/31,039.28 = 13,058.81/x
  3. Step 3: Cross multiply
    22,490.25x = 31,039.28 × 13,058.81
  4. Step 4: Simplify right side
    22,490.25x = 405,336,170.30
  5. Step 5: Solve for x
    x = 405,336,170.30/22,490.25
  6. Step 6: Final answer
    x = 18,022.75

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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.