Home / 19,929.07-29,896.85-6,780.07

Finding the Fourth Proportional to 19,929.07, 29,896.85 and 6,780.07

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Solution

The fourth proportional to 19,929.07, 29,896.85 and 6,780.07 is: 10,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.07 : 29,896.85 = 6,780.07 : x
  2. Step 2: Convert to fraction form
    19,929.07/29,896.85 = 6,780.07/x
  3. Step 3: Cross multiply
    19,929.07x = 29,896.85 × 6,780.07
  4. Step 4: Simplify right side
    19,929.07x = 202,702,735.78
  5. Step 5: Solve for x
    x = 202,702,735.78/19,929.07
  6. Step 6: Final answer
    x = 10,171.21

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1.5x scale

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.