Home / 22,277.31-30,731.55-13,322.46

Finding the Fourth Proportional to 22,277.31, 30,731.55 and 13,322.46

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Solution

The fourth proportional to 22,277.31, 30,731.55 and 13,322.46 is: 18,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,277.31 : 30,731.55 = 13,322.46 : x
  2. Step 2: Convert to fraction form
    22,277.31/30,731.55 = 13,322.46/x
  3. Step 3: Cross multiply
    22,277.31x = 30,731.55 × 13,322.46
  4. Step 4: Simplify right side
    22,277.31x = 409,419,845.61
  5. Step 5: Solve for x
    x = 409,419,845.61/22,277.31
  6. Step 6: Final answer
    x = 18,378.33

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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.