Home / 22,305.48-30,782.56-13,351.28

Finding the Fourth Proportional to 22,305.48, 30,782.56 and 13,351.28

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Solution

The fourth proportional to 22,305.48, 30,782.56 and 13,351.28 is: 18,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.48 : 30,782.56 = 13,351.28 : x
  2. Step 2: Convert to fraction form
    22,305.48/30,782.56 = 13,351.28/x
  3. Step 3: Cross multiply
    22,305.48x = 30,782.56 × 13,351.28
  4. Step 4: Simplify right side
    22,305.48x = 410,986,577.68
  5. Step 5: Solve for x
    x = 410,986,577.68/22,305.48
  6. Step 6: Final answer
    x = 18,425.36

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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.