Home / 20,442.36-30,670.02-15,517.56

Finding the Fourth Proportional to 20,442.36, 30,670.02 and 15,517.56

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Solution

The fourth proportional to 20,442.36, 30,670.02 and 15,517.56 is: 23,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.36 : 30,670.02 = 15,517.56 : x
  2. Step 2: Convert to fraction form
    20,442.36/30,670.02 = 15,517.56/x
  3. Step 3: Cross multiply
    20,442.36x = 30,670.02 × 15,517.56
  4. Step 4: Simplify right side
    20,442.36x = 475,923,875.55
  5. Step 5: Solve for x
    x = 475,923,875.55/20,442.36
  6. Step 6: Final answer
    x = 23,281.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.