Home / 39,968.62-59,989.24-21,264.30

Finding the Fourth Proportional to 39,968.62, 59,989.24 and 21,264.30

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Solution

The fourth proportional to 39,968.62, 59,989.24 and 21,264.30 is: 31,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,968.62 : 59,989.24 = 21,264.30 : x
  2. Step 2: Convert to fraction form
    39,968.62/59,989.24 = 21,264.30/x
  3. Step 3: Cross multiply
    39,968.62x = 59,989.24 × 21,264.30
  4. Step 4: Simplify right side
    39,968.62x = 1,275,629,388.76
  5. Step 5: Solve for x
    x = 1,275,629,388.76/39,968.62
  6. Step 6: Final answer
    x = 31,915.77

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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.