Home / 28,491.74-42,737.13-10,965.36

Finding the Fourth Proportional to 28,491.74, 42,737.13 and 10,965.36

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Solution

The fourth proportional to 28,491.74, 42,737.13 and 10,965.36 is: 16,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.74 : 42,737.13 = 10,965.36 : x
  2. Step 2: Convert to fraction form
    28,491.74/42,737.13 = 10,965.36/x
  3. Step 3: Cross multiply
    28,491.74x = 42,737.13 × 10,965.36
  4. Step 4: Simplify right side
    28,491.74x = 468,628,015.82
  5. Step 5: Solve for x
    x = 468,628,015.82/28,491.74
  6. Step 6: Final answer
    x = 16,447.86

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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.