Home / 20,167.65-27,832.55-11,216.14

Finding the Fourth Proportional to 20,167.65, 27,832.55 and 11,216.14

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Solution

The fourth proportional to 20,167.65, 27,832.55 and 11,216.14 is: 15,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.65 : 27,832.55 = 11,216.14 : x
  2. Step 2: Convert to fraction form
    20,167.65/27,832.55 = 11,216.14/x
  3. Step 3: Cross multiply
    20,167.65x = 27,832.55 × 11,216.14
  4. Step 4: Simplify right side
    20,167.65x = 312,173,651.69
  5. Step 5: Solve for x
    x = 312,173,651.69/20,167.65
  6. Step 6: Final answer
    x = 15,478.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.