Home / 18,432.78-25,442.68-15,941.66

Finding the Fourth Proportional to 18,432.78, 25,442.68 and 15,941.66

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Solution

The fourth proportional to 18,432.78, 25,442.68 and 15,941.66 is: 22,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.78 : 25,442.68 = 15,941.66 : x
  2. Step 2: Convert to fraction form
    18,432.78/25,442.68 = 15,941.66/x
  3. Step 3: Cross multiply
    18,432.78x = 25,442.68 × 15,941.66
  4. Step 4: Simplify right side
    18,432.78x = 405,598,554.05
  5. Step 5: Solve for x
    x = 405,598,554.05/18,432.78
  6. Step 6: Final answer
    x = 22,004.20

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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.