Home / 28,458.69-42,696.14-9,741.21

Finding the Fourth Proportional to 28,458.69, 42,696.14 and 9,741.21

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Solution

The fourth proportional to 28,458.69, 42,696.14 and 9,741.21 is: 14,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.69 : 42,696.14 = 9,741.21 : x
  2. Step 2: Convert to fraction form
    28,458.69/42,696.14 = 9,741.21/x
  3. Step 3: Cross multiply
    28,458.69x = 42,696.14 × 9,741.21
  4. Step 4: Simplify right side
    28,458.69x = 415,912,017.22
  5. Step 5: Solve for x
    x = 415,912,017.22/28,458.69
  6. Step 6: Final answer
    x = 14,614.59

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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.