Home / 20,053.81-27,674.19-11,100.78

Finding the Fourth Proportional to 20,053.81, 27,674.19 and 11,100.78

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Solution

The fourth proportional to 20,053.81, 27,674.19 and 11,100.78 is: 15,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.81 : 27,674.19 = 11,100.78 : x
  2. Step 2: Convert to fraction form
    20,053.81/27,674.19 = 11,100.78/x
  3. Step 3: Cross multiply
    20,053.81x = 27,674.19 × 11,100.78
  4. Step 4: Simplify right side
    20,053.81x = 307,205,094.87
  5. Step 5: Solve for x
    x = 307,205,094.87/20,053.81
  6. Step 6: Final answer
    x = 15,319.04

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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.