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Finding the Fourth Proportional to 23,423.76, 35,145.84 and 8,629.20

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Solution

The fourth proportional to 23,423.76, 35,145.84 and 8,629.20 is: 12,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,423.76 : 35,145.84 = 8,629.20 : x
  2. Step 2: Convert to fraction form
    23,423.76/35,145.84 = 8,629.20/x
  3. Step 3: Cross multiply
    23,423.76x = 35,145.84 × 8,629.20
  4. Step 4: Simplify right side
    23,423.76x = 303,280,482.53
  5. Step 5: Solve for x
    x = 303,280,482.53/23,423.76
  6. Step 6: Final answer
    x = 12,947.56

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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.