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Finding the Fourth Proportional to 26,824.80, 40,280.40 and 19,480.80

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Solution

The fourth proportional to 26,824.80, 40,280.40 and 19,480.80 is: 29,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,824.80 : 40,280.40 = 19,480.80 : x
  2. Step 2: Convert to fraction form
    26,824.80/40,280.40 = 19,480.80/x
  3. Step 3: Cross multiply
    26,824.80x = 40,280.40 × 19,480.80
  4. Step 4: Simplify right side
    26,824.80x = 784,694,416.32
  5. Step 5: Solve for x
    x = 784,694,416.32/26,824.80
  6. Step 6: Final answer
    x = 29,252.57

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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.