Home / 22,338.89-30,825.34-13,386.16

Finding the Fourth Proportional to 22,338.89, 30,825.34 and 13,386.16

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Solution

The fourth proportional to 22,338.89, 30,825.34 and 13,386.16 is: 18,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,338.89 : 30,825.34 = 13,386.16 : x
  2. Step 2: Convert to fraction form
    22,338.89/30,825.34 = 13,386.16/x
  3. Step 3: Cross multiply
    22,338.89x = 30,825.34 × 13,386.16
  4. Step 4: Simplify right side
    22,338.89x = 412,632,933.29
  5. Step 5: Solve for x
    x = 412,632,933.29/22,338.89
  6. Step 6: Final answer
    x = 18,471.51

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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.