Home / 20,073.47-27,699.37-11,119.30

Finding the Fourth Proportional to 20,073.47, 27,699.37 and 11,119.30

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Solution

The fourth proportional to 20,073.47, 27,699.37 and 11,119.30 is: 15,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.47 : 27,699.37 = 11,119.30 : x
  2. Step 2: Convert to fraction form
    20,073.47/27,699.37 = 11,119.30/x
  3. Step 3: Cross multiply
    20,073.47x = 27,699.37 × 11,119.30
  4. Step 4: Simplify right side
    20,073.47x = 307,997,611.67
  5. Step 5: Solve for x
    x = 307,997,611.67/20,073.47
  6. Step 6: Final answer
    x = 15,343.52

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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.