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Finding the Fourth Proportional to 30,404.57, 45,605.85 and 13,764.60

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Solution

The fourth proportional to 30,404.57, 45,605.85 and 13,764.60 is: 20,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.57 : 45,605.85 = 13,764.60 : x
  2. Step 2: Convert to fraction form
    30,404.57/45,605.85 = 13,764.60/x
  3. Step 3: Cross multiply
    30,404.57x = 45,605.85 × 13,764.60
  4. Step 4: Simplify right side
    30,404.57x = 627,746,308.72
  5. Step 5: Solve for x
    x = 627,746,308.72/30,404.57
  6. Step 6: Final answer
    x = 20,646.45

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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.