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Finding the Fourth Proportional to 24,453.60, 36,680.40 and 12,643.80

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Solution

The fourth proportional to 24,453.60, 36,680.40 and 12,643.80 is: 18,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,453.60 : 36,680.40 = 12,643.80 : x
  2. Step 2: Convert to fraction form
    24,453.60/36,680.40 = 12,643.80/x
  3. Step 3: Cross multiply
    24,453.60x = 36,680.40 × 12,643.80
  4. Step 4: Simplify right side
    24,453.60x = 463,779,641.52
  5. Step 5: Solve for x
    x = 463,779,641.52/24,453.60
  6. Step 6: Final answer
    x = 18,965.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.