Home / 20,070.26-27,696.87-11,118.32

Finding the Fourth Proportional to 20,070.26, 27,696.87 and 11,118.32

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Solution

The fourth proportional to 20,070.26, 27,696.87 and 11,118.32 is: 15,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.26 : 27,696.87 = 11,118.32 : x
  2. Step 2: Convert to fraction form
    20,070.26/27,696.87 = 11,118.32/x
  3. Step 3: Cross multiply
    20,070.26x = 27,696.87 × 11,118.32
  4. Step 4: Simplify right side
    20,070.26x = 307,942,663.66
  5. Step 5: Solve for x
    x = 307,942,663.66/20,070.26
  6. Step 6: Final answer
    x = 15,343.23

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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.