Home / 30,972.11-42,741.27-16,825.05

Finding the Fourth Proportional to 30,972.11, 42,741.27 and 16,825.05

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Solution

The fourth proportional to 30,972.11, 42,741.27 and 16,825.05 is: 23,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.11 : 42,741.27 = 16,825.05 : x
  2. Step 2: Convert to fraction form
    30,972.11/42,741.27 = 16,825.05/x
  3. Step 3: Cross multiply
    30,972.11x = 42,741.27 × 16,825.05
  4. Step 4: Simplify right side
    30,972.11x = 719,124,004.81
  5. Step 5: Solve for x
    x = 719,124,004.81/30,972.11
  6. Step 6: Final answer
    x = 23,218.44

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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.