Home / 20,176.32-27,842.43-11,223.12

Finding the Fourth Proportional to 20,176.32, 27,842.43 and 11,223.12

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Solution

The fourth proportional to 20,176.32, 27,842.43 and 11,223.12 is: 15,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.32 : 27,842.43 = 11,223.12 : x
  2. Step 2: Convert to fraction form
    20,176.32/27,842.43 = 11,223.12/x
  3. Step 3: Cross multiply
    20,176.32x = 27,842.43 × 11,223.12
  4. Step 4: Simplify right side
    20,176.32x = 312,478,932.98
  5. Step 5: Solve for x
    x = 312,478,932.98/20,176.32
  6. Step 6: Final answer
    x = 15,487.41

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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.