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Finding the Fourth Proportional to 23,240.80, 34,861.20 and 7,656.40

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Solution

The fourth proportional to 23,240.80, 34,861.20 and 7,656.40 is: 11,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,240.80 : 34,861.20 = 7,656.40 : x
  2. Step 2: Convert to fraction form
    23,240.80/34,861.20 = 7,656.40/x
  3. Step 3: Cross multiply
    23,240.80x = 34,861.20 × 7,656.40
  4. Step 4: Simplify right side
    23,240.80x = 266,911,291.68
  5. Step 5: Solve for x
    x = 266,911,291.68/23,240.80
  6. Step 6: Final answer
    x = 11,484.60

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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.