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Finding the Fourth Proportional to 40,562.20, 60,794.70 and 20,830.60

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Solution

The fourth proportional to 40,562.20, 60,794.70 and 20,830.60 is: 31,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,562.20 : 60,794.70 = 20,830.60 : x
  2. Step 2: Convert to fraction form
    40,562.20/60,794.70 = 20,830.60/x
  3. Step 3: Cross multiply
    40,562.20x = 60,794.70 × 20,830.60
  4. Step 4: Simplify right side
    40,562.20x = 1,266,390,077.82
  5. Step 5: Solve for x
    x = 1,266,390,077.82/40,562.20
  6. Step 6: Final answer
    x = 31,220.94

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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.