Home / 31,119.19-42,942.25-17,688.17

Finding the Fourth Proportional to 31,119.19, 42,942.25 and 17,688.17

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Solution

The fourth proportional to 31,119.19, 42,942.25 and 17,688.17 is: 24,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,119.19 : 42,942.25 = 17,688.17 : x
  2. Step 2: Convert to fraction form
    31,119.19/42,942.25 = 17,688.17/x
  3. Step 3: Cross multiply
    31,119.19x = 42,942.25 × 17,688.17
  4. Step 4: Simplify right side
    31,119.19x = 759,569,947.65
  5. Step 5: Solve for x
    x = 759,569,947.65/31,119.19
  6. Step 6: Final answer
    x = 24,408.41

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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.