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Finding the Fourth Proportional to 29,110.40, 43,665.60 and 18,051.20

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Solution

The fourth proportional to 29,110.40, 43,665.60 and 18,051.20 is: 27,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,110.40 : 43,665.60 = 18,051.20 : x
  2. Step 2: Convert to fraction form
    29,110.40/43,665.60 = 18,051.20/x
  3. Step 3: Cross multiply
    29,110.40x = 43,665.60 × 18,051.20
  4. Step 4: Simplify right side
    29,110.40x = 788,216,478.72
  5. Step 5: Solve for x
    x = 788,216,478.72/29,110.40
  6. Step 6: Final answer
    x = 27,076.80

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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.