Home / 25,201.62-37,830.30-21,301.20

Finding the Fourth Proportional to 25,201.62, 37,830.30 and 21,301.20

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Solution

The fourth proportional to 25,201.62, 37,830.30 and 21,301.20 is: 31,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,201.62 : 37,830.30 = 21,301.20 : x
  2. Step 2: Convert to fraction form
    25,201.62/37,830.30 = 21,301.20/x
  3. Step 3: Cross multiply
    25,201.62x = 37,830.30 × 21,301.20
  4. Step 4: Simplify right side
    25,201.62x = 805,830,786.36
  5. Step 5: Solve for x
    x = 805,830,786.36/25,201.62
  6. Step 6: Final answer
    x = 31,975.36

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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.