Home / 19,438.52-29,157.84-5,399.64

Finding the Fourth Proportional to 19,438.52, 29,157.84 and 5,399.64

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Solution

The fourth proportional to 19,438.52, 29,157.84 and 5,399.64 is: 8,099.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.52 : 29,157.84 = 5,399.64 : x
  2. Step 2: Convert to fraction form
    19,438.52/29,157.84 = 5,399.64/x
  3. Step 3: Cross multiply
    19,438.52x = 29,157.84 × 5,399.64
  4. Step 4: Simplify right side
    19,438.52x = 157,441,839.18
  5. Step 5: Solve for x
    x = 157,441,839.18/19,438.52
  6. Step 6: Final answer
    x = 8,099.48

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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.