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Finding the Fourth Proportional to 43,599.68, 65,424.48 and 18,636.80

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Solution

The fourth proportional to 43,599.68, 65,424.48 and 18,636.80 is: 27,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,599.68 : 65,424.48 = 18,636.80 : x
  2. Step 2: Convert to fraction form
    43,599.68/65,424.48 = 18,636.80/x
  3. Step 3: Cross multiply
    43,599.68x = 65,424.48 × 18,636.80
  4. Step 4: Simplify right side
    43,599.68x = 1,219,302,948.86
  5. Step 5: Solve for x
    x = 1,219,302,948.86/43,599.68
  6. Step 6: Final answer
    x = 27,965.87

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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.