Home / 22,822.25-31,489.30-13,256.45

Finding the Fourth Proportional to 22,822.25, 31,489.30 and 13,256.45

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Solution

The fourth proportional to 22,822.25, 31,489.30 and 13,256.45 is: 18,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,822.25 : 31,489.30 = 13,256.45 : x
  2. Step 2: Convert to fraction form
    22,822.25/31,489.30 = 13,256.45/x
  3. Step 3: Cross multiply
    22,822.25x = 31,489.30 × 13,256.45
  4. Step 4: Simplify right side
    22,822.25x = 417,436,308.19
  5. Step 5: Solve for x
    x = 417,436,308.19/22,822.25
  6. Step 6: Final answer
    x = 18,290.76

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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.