Home / 20,063.13-27,688.16-11,111.61

Finding the Fourth Proportional to 20,063.13, 27,688.16 and 11,111.61

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Solution

The fourth proportional to 20,063.13, 27,688.16 and 11,111.61 is: 15,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.13 : 27,688.16 = 11,111.61 : x
  2. Step 2: Convert to fraction form
    20,063.13/27,688.16 = 11,111.61/x
  3. Step 3: Cross multiply
    20,063.13x = 27,688.16 × 11,111.61
  4. Step 4: Simplify right side
    20,063.13x = 307,659,979.98
  5. Step 5: Solve for x
    x = 307,659,979.98/20,063.13
  6. Step 6: Final answer
    x = 15,334.60

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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.