Home / 31,016.53-42,803.27-19,072.81

Finding the Fourth Proportional to 31,016.53, 42,803.27 and 19,072.81

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Solution

The fourth proportional to 31,016.53, 42,803.27 and 19,072.81 is: 26,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,016.53 : 42,803.27 = 19,072.81 : x
  2. Step 2: Convert to fraction form
    31,016.53/42,803.27 = 19,072.81/x
  3. Step 3: Cross multiply
    31,016.53x = 42,803.27 × 19,072.81
  4. Step 4: Simplify right side
    31,016.53x = 816,378,636.09
  5. Step 5: Solve for x
    x = 816,378,636.09/31,016.53
  6. Step 6: Final answer
    x = 26,320.76

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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.