Home / 21,449.25-32,186.84-9,137.25

Finding the Fourth Proportional to 21,449.25, 32,186.84 and 9,137.25

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Solution

The fourth proportional to 21,449.25, 32,186.84 and 9,137.25 is: 13,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.25 : 32,186.84 = 9,137.25 : x
  2. Step 2: Convert to fraction form
    21,449.25/32,186.84 = 9,137.25/x
  3. Step 3: Cross multiply
    21,449.25x = 32,186.84 × 9,137.25
  4. Step 4: Simplify right side
    21,449.25x = 294,099,158.10
  5. Step 5: Solve for x
    x = 294,099,158.10/21,449.25
  6. Step 6: Final answer
    x = 13,711.40

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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.