Home / 28,110.94-42,172.81-9,641.82

Finding the Fourth Proportional to 28,110.94, 42,172.81 and 9,641.82

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Solution

The fourth proportional to 28,110.94, 42,172.81 and 9,641.82 is: 14,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.94 : 42,172.81 = 9,641.82 : x
  2. Step 2: Convert to fraction form
    28,110.94/42,172.81 = 9,641.82/x
  3. Step 3: Cross multiply
    28,110.94x = 42,172.81 × 9,641.82
  4. Step 4: Simplify right side
    28,110.94x = 406,622,642.91
  5. Step 5: Solve for x
    x = 406,622,642.91/28,110.94
  6. Step 6: Final answer
    x = 14,464.93

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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.