Home / 29,278.24-43,880.59-12,618.78

Finding the Fourth Proportional to 29,278.24, 43,880.59 and 12,618.78

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Solution

The fourth proportional to 29,278.24, 43,880.59 and 12,618.78 is: 18,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.24 : 43,880.59 = 12,618.78 : x
  2. Step 2: Convert to fraction form
    29,278.24/43,880.59 = 12,618.78/x
  3. Step 3: Cross multiply
    29,278.24x = 43,880.59 × 12,618.78
  4. Step 4: Simplify right side
    29,278.24x = 553,719,511.48
  5. Step 5: Solve for x
    x = 553,719,511.48/29,278.24
  6. Step 6: Final answer
    x = 18,912.32

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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.