Home / 19,859.78-29,789.64-5,068.70

Finding the Fourth Proportional to 19,859.78, 29,789.64 and 5,068.70

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Solution

The fourth proportional to 19,859.78, 29,789.64 and 5,068.70 is: 7,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.78 : 29,789.64 = 5,068.70 : x
  2. Step 2: Convert to fraction form
    19,859.78/29,789.64 = 5,068.70/x
  3. Step 3: Cross multiply
    19,859.78x = 29,789.64 × 5,068.70
  4. Step 4: Simplify right side
    19,859.78x = 150,994,599.32
  5. Step 5: Solve for x
    x = 150,994,599.32/19,859.78
  6. Step 6: Final answer
    x = 7,603.04

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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.