Home / 20,283.51-30,426.64-7,799.39

Finding the Fourth Proportional to 20,283.51, 30,426.64 and 7,799.39

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Solution

The fourth proportional to 20,283.51, 30,426.64 and 7,799.39 is: 11,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.51 : 30,426.64 = 7,799.39 : x
  2. Step 2: Convert to fraction form
    20,283.51/30,426.64 = 7,799.39/x
  3. Step 3: Cross multiply
    20,283.51x = 30,426.64 × 7,799.39
  4. Step 4: Simplify right side
    20,283.51x = 237,309,174.22
  5. Step 5: Solve for x
    x = 237,309,174.22/20,283.51
  6. Step 6: Final answer
    x = 11,699.61

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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.