Home / 20,009.52-30,004.02-11,691.36

Finding the Fourth Proportional to 20,009.52, 30,004.02 and 11,691.36

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Solution

The fourth proportional to 20,009.52, 30,004.02 and 11,691.36 is: 17,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.52 : 30,004.02 = 11,691.36 : x
  2. Step 2: Convert to fraction form
    20,009.52/30,004.02 = 11,691.36/x
  3. Step 3: Cross multiply
    20,009.52x = 30,004.02 × 11,691.36
  4. Step 4: Simplify right side
    20,009.52x = 350,787,799.27
  5. Step 5: Solve for x
    x = 350,787,799.27/20,009.52
  6. Step 6: Final answer
    x = 17,531.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.