Home / 19,880.43-29,820.62-5,089.35

Finding the Fourth Proportional to 19,880.43, 29,820.62 and 5,089.35

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Solution

The fourth proportional to 19,880.43, 29,820.62 and 5,089.35 is: 7,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.43 : 29,820.62 = 5,089.35 : x
  2. Step 2: Convert to fraction form
    19,880.43/29,820.62 = 5,089.35/x
  3. Step 3: Cross multiply
    19,880.43x = 29,820.62 × 5,089.35
  4. Step 4: Simplify right side
    19,880.43x = 151,767,546.95
  5. Step 5: Solve for x
    x = 151,767,546.95/19,880.43
  6. Step 6: Final answer
    x = 7,634.02

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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.