Home / 20,445.86-30,650.61-7,962.98

Finding the Fourth Proportional to 20,445.86, 30,650.61 and 7,962.98

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Solution

The fourth proportional to 20,445.86, 30,650.61 and 7,962.98 is: 11,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.86 : 30,650.61 = 7,962.98 : x
  2. Step 2: Convert to fraction form
    20,445.86/30,650.61 = 7,962.98/x
  3. Step 3: Cross multiply
    20,445.86x = 30,650.61 × 7,962.98
  4. Step 4: Simplify right side
    20,445.86x = 244,070,194.42
  5. Step 5: Solve for x
    x = 244,070,194.42/20,445.86
  6. Step 6: Final answer
    x = 11,937.39

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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.