Home / 20,070.08-27,696.64-11,238.08

Finding the Fourth Proportional to 20,070.08, 27,696.64 and 11,238.08

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Solution

The fourth proportional to 20,070.08, 27,696.64 and 11,238.08 is: 15,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.08 : 27,696.64 = 11,238.08 : x
  2. Step 2: Convert to fraction form
    20,070.08/27,696.64 = 11,238.08/x
  3. Step 3: Cross multiply
    20,070.08x = 27,696.64 × 11,238.08
  4. Step 4: Simplify right side
    20,070.08x = 311,257,056.05
  5. Step 5: Solve for x
    x = 311,257,056.05/20,070.08
  6. Step 6: Final answer
    x = 15,508.51

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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.