Home / 20,896.57-28,837.02-11,336.23

Finding the Fourth Proportional to 20,896.57, 28,837.02 and 11,336.23

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Solution

The fourth proportional to 20,896.57, 28,837.02 and 11,336.23 is: 15,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.57 : 28,837.02 = 11,336.23 : x
  2. Step 2: Convert to fraction form
    20,896.57/28,837.02 = 11,336.23/x
  3. Step 3: Cross multiply
    20,896.57x = 28,837.02 × 11,336.23
  4. Step 4: Simplify right side
    20,896.57x = 326,903,091.23
  5. Step 5: Solve for x
    x = 326,903,091.23/20,896.57
  6. Step 6: Final answer
    x = 15,643.86

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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.