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Finding the Fourth Proportional to 31,420.02, 43,363.05 and 17,995.68

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Solution

The fourth proportional to 31,420.02, 43,363.05 and 17,995.68 is: 24,836.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.02 : 43,363.05 = 17,995.68 : x
  2. Step 2: Convert to fraction form
    31,420.02/43,363.05 = 17,995.68/x
  3. Step 3: Cross multiply
    31,420.02x = 43,363.05 × 17,995.68
  4. Step 4: Simplify right side
    31,420.02x = 780,347,571.62
  5. Step 5: Solve for x
    x = 780,347,571.62/31,420.02
  6. Step 6: Final answer
    x = 24,836.00

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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.