Home / 30,033.78-45,055.56-9,257.28

Finding the Fourth Proportional to 30,033.78, 45,055.56 and 9,257.28

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Solution

The fourth proportional to 30,033.78, 45,055.56 and 9,257.28 is: 13,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,033.78 : 45,055.56 = 9,257.28 : x
  2. Step 2: Convert to fraction form
    30,033.78/45,055.56 = 9,257.28/x
  3. Step 3: Cross multiply
    30,033.78x = 45,055.56 × 9,257.28
  4. Step 4: Simplify right side
    30,033.78x = 417,091,934.48
  5. Step 5: Solve for x
    x = 417,091,934.48/30,033.78
  6. Step 6: Final answer
    x = 13,887.43

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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.