Home / 21,651.15-32,479.99-9,171.23

Finding the Fourth Proportional to 21,651.15, 32,479.99 and 9,171.23

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Solution

The fourth proportional to 21,651.15, 32,479.99 and 9,171.23 is: 13,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.15 : 32,479.99 = 9,171.23 : x
  2. Step 2: Convert to fraction form
    21,651.15/32,479.99 = 9,171.23/x
  3. Step 3: Cross multiply
    21,651.15x = 32,479.99 × 9,171.23
  4. Step 4: Simplify right side
    21,651.15x = 297,881,273.36
  5. Step 5: Solve for x
    x = 297,881,273.36/21,651.15
  6. Step 6: Final answer
    x = 13,758.22

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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.