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Finding the Fourth Proportional to 43,404.90, 65,110.95 and 13,821.90

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Solution

The fourth proportional to 43,404.90, 65,110.95 and 13,821.90 is: 20,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,404.90 : 65,110.95 = 13,821.90 : x
  2. Step 2: Convert to fraction form
    43,404.90/65,110.95 = 13,821.90/x
  3. Step 3: Cross multiply
    43,404.90x = 65,110.95 × 13,821.90
  4. Step 4: Simplify right side
    43,404.90x = 899,957,039.81
  5. Step 5: Solve for x
    x = 899,957,039.81/43,404.90
  6. Step 6: Final answer
    x = 20,734.00

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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.