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Finding the Fourth Proportional to 29,620.40, 44,455.80 and 12,102.80

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Solution

The fourth proportional to 29,620.40, 44,455.80 and 12,102.80 is: 18,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,620.40 : 44,455.80 = 12,102.80 : x
  2. Step 2: Convert to fraction form
    29,620.40/44,455.80 = 12,102.80/x
  3. Step 3: Cross multiply
    29,620.40x = 44,455.80 × 12,102.80
  4. Step 4: Simplify right side
    29,620.40x = 538,039,656.24
  5. Step 5: Solve for x
    x = 538,039,656.24/29,620.40
  6. Step 6: Final answer
    x = 18,164.50

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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.