Home / 20,013.39-30,003.89-8,335.35

Finding the Fourth Proportional to 20,013.39, 30,003.89 and 8,335.35

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Solution

The fourth proportional to 20,013.39, 30,003.89 and 8,335.35 is: 12,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.39 : 30,003.89 = 8,335.35 : x
  2. Step 2: Convert to fraction form
    20,013.39/30,003.89 = 8,335.35/x
  3. Step 3: Cross multiply
    20,013.39x = 30,003.89 × 8,335.35
  4. Step 4: Simplify right side
    20,013.39x = 250,092,882.83
  5. Step 5: Solve for x
    x = 250,092,882.83/20,013.39
  6. Step 6: Final answer
    x = 12,496.28

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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.