Home / 22,236.29-30,686.04-13,289.03

Finding the Fourth Proportional to 22,236.29, 30,686.04 and 13,289.03

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Solution

The fourth proportional to 22,236.29, 30,686.04 and 13,289.03 is: 18,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,236.29 : 30,686.04 = 13,289.03 : x
  2. Step 2: Convert to fraction form
    22,236.29/30,686.04 = 13,289.03/x
  3. Step 3: Cross multiply
    22,236.29x = 30,686.04 × 13,289.03
  4. Step 4: Simplify right side
    22,236.29x = 407,787,706.14
  5. Step 5: Solve for x
    x = 407,787,706.14/22,236.29
  6. Step 6: Final answer
    x = 18,338.84

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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.