Home / 15,816.31-23,728.07-5,427.43

Finding the Fourth Proportional to 15,816.31, 23,728.07 and 5,427.43

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Solution

The fourth proportional to 15,816.31, 23,728.07 and 5,427.43 is: 8,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.31 : 23,728.07 = 5,427.43 : x
  2. Step 2: Convert to fraction form
    15,816.31/23,728.07 = 5,427.43/x
  3. Step 3: Cross multiply
    15,816.31x = 23,728.07 × 5,427.43
  4. Step 4: Simplify right side
    15,816.31x = 128,782,438.96
  5. Step 5: Solve for x
    x = 128,782,438.96/15,816.31
  6. Step 6: Final answer
    x = 8,142.38

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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.