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Finding the Fourth Proportional to 43,645.01, 65,493.63 and 18,685.08

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Solution

The fourth proportional to 43,645.01, 65,493.63 and 18,685.08 is: 28,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,645.01 : 65,493.63 = 18,685.08 : x
  2. Step 2: Convert to fraction form
    43,645.01/65,493.63 = 18,685.08/x
  3. Step 3: Cross multiply
    43,645.01x = 65,493.63 × 18,685.08
  4. Step 4: Simplify right side
    43,645.01x = 1,223,753,716.04
  5. Step 5: Solve for x
    x = 1,223,753,716.04/43,645.01
  6. Step 6: Final answer
    x = 28,038.80

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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.