Home / 18,401.18-25,360.80-15,022.22

Finding the Fourth Proportional to 18,401.18, 25,360.80 and 15,022.22

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Solution

The fourth proportional to 18,401.18, 25,360.80 and 15,022.22 is: 20,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.18 : 25,360.80 = 15,022.22 : x
  2. Step 2: Convert to fraction form
    18,401.18/25,360.80 = 15,022.22/x
  3. Step 3: Cross multiply
    18,401.18x = 25,360.80 × 15,022.22
  4. Step 4: Simplify right side
    18,401.18x = 380,975,516.98
  5. Step 5: Solve for x
    x = 380,975,516.98/18,401.18
  6. Step 6: Final answer
    x = 20,703.86

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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.