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Finding the Fourth Proportional to 29,155.51, 40,236.64 and 16,409.91

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Solution

The fourth proportional to 29,155.51, 40,236.64 and 16,409.91 is: 22,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,155.51 : 40,236.64 = 16,409.91 : x
  2. Step 2: Convert to fraction form
    29,155.51/40,236.64 = 16,409.91/x
  3. Step 3: Cross multiply
    29,155.51x = 40,236.64 × 16,409.91
  4. Step 4: Simplify right side
    29,155.51x = 660,279,750.97
  5. Step 5: Solve for x
    x = 660,279,750.97/29,155.51
  6. Step 6: Final answer
    x = 22,646.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.