Home / 22,423.66-30,912.33-15,688.42

Finding the Fourth Proportional to 22,423.66, 30,912.33 and 15,688.42

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Solution

The fourth proportional to 22,423.66, 30,912.33 and 15,688.42 is: 21,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.66 : 30,912.33 = 15,688.42 : x
  2. Step 2: Convert to fraction form
    22,423.66/30,912.33 = 15,688.42/x
  3. Step 3: Cross multiply
    22,423.66x = 30,912.33 × 15,688.42
  4. Step 4: Simplify right side
    22,423.66x = 484,965,616.22
  5. Step 5: Solve for x
    x = 484,965,616.22/22,423.66
  6. Step 6: Final answer
    x = 21,627.41

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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.