Home / 22,290.28-30,760.93-13,338.16

Finding the Fourth Proportional to 22,290.28, 30,760.93 and 13,338.16

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Solution

The fourth proportional to 22,290.28, 30,760.93 and 13,338.16 is: 18,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.28 : 30,760.93 = 13,338.16 : x
  2. Step 2: Convert to fraction form
    22,290.28/30,760.93 = 13,338.16/x
  3. Step 3: Cross multiply
    22,290.28x = 30,760.93 × 13,338.16
  4. Step 4: Simplify right side
    22,290.28x = 410,294,206.09
  5. Step 5: Solve for x
    x = 410,294,206.09/22,290.28
  6. Step 6: Final answer
    x = 18,406.87

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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.