Home / 30,943.78-46,408.23-14,287.81

Finding the Fourth Proportional to 30,943.78, 46,408.23 and 14,287.81

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Solution

The fourth proportional to 30,943.78, 46,408.23 and 14,287.81 is: 21,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.78 : 46,408.23 = 14,287.81 : x
  2. Step 2: Convert to fraction form
    30,943.78/46,408.23 = 14,287.81/x
  3. Step 3: Cross multiply
    30,943.78x = 46,408.23 × 14,287.81
  4. Step 4: Simplify right side
    30,943.78x = 663,071,972.68
  5. Step 5: Solve for x
    x = 663,071,972.68/30,943.78
  6. Step 6: Final answer
    x = 21,428.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.