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Finding the Fourth Proportional to 36,280.80, 54,388.40 and 12,901.77

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Solution

The fourth proportional to 36,280.80, 54,388.40 and 12,901.77 is: 19,340.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,280.80 : 54,388.40 = 12,901.77 : x
  2. Step 2: Convert to fraction form
    36,280.80/54,388.40 = 12,901.77/x
  3. Step 3: Cross multiply
    36,280.80x = 54,388.40 × 12,901.77
  4. Step 4: Simplify right side
    36,280.80x = 701,706,562.96
  5. Step 5: Solve for x
    x = 701,706,562.96/36,280.80
  6. Step 6: Final answer
    x = 19,340.99

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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.