Home / 30,284.73-45,116.31-28,918.50

Finding the Fourth Proportional to 30,284.73, 45,116.31 and 28,918.50

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Solution

The fourth proportional to 30,284.73, 45,116.31 and 28,918.50 is: 43,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.73 : 45,116.31 = 28,918.50 : x
  2. Step 2: Convert to fraction form
    30,284.73/45,116.31 = 28,918.50/x
  3. Step 3: Cross multiply
    30,284.73x = 45,116.31 × 28,918.50
  4. Step 4: Simplify right side
    30,284.73x = 1,304,696,122.44
  5. Step 5: Solve for x
    x = 1,304,696,122.44/30,284.73
  6. Step 6: Final answer
    x = 43,080.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.