Home / 40,943.28-61,415.69-12,862.81

Finding the Fourth Proportional to 40,943.28, 61,415.69 and 12,862.81

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Solution

The fourth proportional to 40,943.28, 61,415.69 and 12,862.81 is: 19,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,943.28 : 61,415.69 = 12,862.81 : x
  2. Step 2: Convert to fraction form
    40,943.28/61,415.69 = 12,862.81/x
  3. Step 3: Cross multiply
    40,943.28x = 61,415.69 × 12,862.81
  4. Step 4: Simplify right side
    40,943.28x = 789,978,363.94
  5. Step 5: Solve for x
    x = 789,978,363.94/40,943.28
  6. Step 6: Final answer
    x = 19,294.46

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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.