Home / 20,031.12-27,645.02-11,533.54

Finding the Fourth Proportional to 20,031.12, 27,645.02 and 11,533.54

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Solution

The fourth proportional to 20,031.12, 27,645.02 and 11,533.54 is: 15,917.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.12 : 27,645.02 = 11,533.54 : x
  2. Step 2: Convert to fraction form
    20,031.12/27,645.02 = 11,533.54/x
  3. Step 3: Cross multiply
    20,031.12x = 27,645.02 × 11,533.54
  4. Step 4: Simplify right side
    20,031.12x = 318,844,943.97
  5. Step 5: Solve for x
    x = 318,844,943.97/20,031.12
  6. Step 6: Final answer
    x = 15,917.48

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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.