Home / 33,280-45,921.18-19,130.20

Finding the Fourth Proportional to 33,280, 45,921.18 and 19,130.20

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Solution

The fourth proportional to 33,280, 45,921.18 and 19,130.20 is: 26,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280 : 45,921.18 = 19,130.20 : x
  2. Step 2: Convert to fraction form
    33,280/45,921.18 = 19,130.20/x
  3. Step 3: Cross multiply
    33,280x = 45,921.18 × 19,130.20
  4. Step 4: Simplify right side
    33,280x = 878,481,357.64
  5. Step 5: Solve for x
    x = 878,481,357.64/33,280
  6. Step 6: Final answer
    x = 26,396.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.