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Finding the Fourth Proportional to 29,300.86, 40,435.23 and 15,872.23

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Solution

The fourth proportional to 29,300.86, 40,435.23 and 15,872.23 is: 21,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,300.86 : 40,435.23 = 15,872.23 : x
  2. Step 2: Convert to fraction form
    29,300.86/40,435.23 = 15,872.23/x
  3. Step 3: Cross multiply
    29,300.86x = 40,435.23 × 15,872.23
  4. Step 4: Simplify right side
    29,300.86x = 641,797,270.66
  5. Step 5: Solve for x
    x = 641,797,270.66/29,300.86
  6. Step 6: Final answer
    x = 21,903.70

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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.