Home / 22,782.56-31,439.97-13,351.13

Finding the Fourth Proportional to 22,782.56, 31,439.97 and 13,351.13

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Solution

The fourth proportional to 22,782.56, 31,439.97 and 13,351.13 is: 18,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,782.56 : 31,439.97 = 13,351.13 : x
  2. Step 2: Convert to fraction form
    22,782.56/31,439.97 = 13,351.13/x
  3. Step 3: Cross multiply
    22,782.56x = 31,439.97 × 13,351.13
  4. Step 4: Simplify right side
    22,782.56x = 419,759,126.67
  5. Step 5: Solve for x
    x = 419,759,126.67/22,782.56
  6. Step 6: Final answer
    x = 18,424.58

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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.