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Finding the Fourth Proportional to 23,409.90, 35,114.85 and 8,619.30

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Solution

The fourth proportional to 23,409.90, 35,114.85 and 8,619.30 is: 12,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,409.90 : 35,114.85 = 8,619.30 : x
  2. Step 2: Convert to fraction form
    23,409.90/35,114.85 = 8,619.30/x
  3. Step 3: Cross multiply
    23,409.90x = 35,114.85 × 8,619.30
  4. Step 4: Simplify right side
    23,409.90x = 302,665,426.61
  5. Step 5: Solve for x
    x = 302,665,426.61/23,409.90
  6. Step 6: Final answer
    x = 12,928.95

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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.