Home / 20,501,427.38-28,292,560.27-11,334,660.62

Finding the Fourth Proportional to 20,501,427.38, 28,292,560.27 and 11,334,660.62

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Solution

The fourth proportional to 20,501,427.38, 28,292,560.27 and 11,334,660.62 is: 15,642,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,427.38 : 28,292,560.27 = 11,334,660.62 : x
  2. Step 2: Convert to fraction form
    20,501,427.38/28,292,560.27 = 11,334,660.62/x
  3. Step 3: Cross multiply
    20,501,427.38x = 28,292,560.27 × 11,334,660.62
  4. Step 4: Simplify right side
    20,501,427.38x = 320,686,568,561,546.12
  5. Step 5: Solve for x
    x = 320,686,568,561,546.12/20,501,427.38
  6. Step 6: Final answer
    x = 15,642,158.11

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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.