Home / 20,100.10-27,740.19-11,602.39

Finding the Fourth Proportional to 20,100.10, 27,740.19 and 11,602.39

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Solution

The fourth proportional to 20,100.10, 27,740.19 and 11,602.39 is: 16,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.10 : 27,740.19 = 11,602.39 : x
  2. Step 2: Convert to fraction form
    20,100.10/27,740.19 = 11,602.39/x
  3. Step 3: Cross multiply
    20,100.10x = 27,740.19 × 11,602.39
  4. Step 4: Simplify right side
    20,100.10x = 321,852,503.05
  5. Step 5: Solve for x
    x = 321,852,503.05/20,100.10
  6. Step 6: Final answer
    x = 16,012.48

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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.