Home / 19,935.78-29,906.69-6,785.07

Finding the Fourth Proportional to 19,935.78, 29,906.69 and 6,785.07

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Solution

The fourth proportional to 19,935.78, 29,906.69 and 6,785.07 is: 10,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.78 : 29,906.69 = 6,785.07 : x
  2. Step 2: Convert to fraction form
    19,935.78/29,906.69 = 6,785.07/x
  3. Step 3: Cross multiply
    19,935.78x = 29,906.69 × 6,785.07
  4. Step 4: Simplify right side
    19,935.78x = 202,919,148.63
  5. Step 5: Solve for x
    x = 202,919,148.63/19,935.78
  6. Step 6: Final answer
    x = 10,178.64

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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.