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Finding the Fourth Proportional to 20,656.03, 30,984.15 and 5,073.66

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Solution

The fourth proportional to 20,656.03, 30,984.15 and 5,073.66 is: 7,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.03 : 30,984.15 = 5,073.66 : x
  2. Step 2: Convert to fraction form
    20,656.03/30,984.15 = 5,073.66/x
  3. Step 3: Cross multiply
    20,656.03x = 30,984.15 × 5,073.66
  4. Step 4: Simplify right side
    20,656.03x = 157,203,042.49
  5. Step 5: Solve for x
    x = 157,203,042.49/20,656.03
  6. Step 6: Final answer
    x = 7,610.52

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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.