Home / 31,119.64-42,944.52-16,972.24

Finding the Fourth Proportional to 31,119.64, 42,944.52 and 16,972.24

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Solution

The fourth proportional to 31,119.64, 42,944.52 and 16,972.24 is: 23,421.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,119.64 : 42,944.52 = 16,972.24 : x
  2. Step 2: Convert to fraction form
    31,119.64/42,944.52 = 16,972.24/x
  3. Step 3: Cross multiply
    31,119.64x = 42,944.52 × 16,972.24
  4. Step 4: Simplify right side
    31,119.64x = 728,864,700.12
  5. Step 5: Solve for x
    x = 728,864,700.12/31,119.64
  6. Step 6: Final answer
    x = 23,421.37

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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.