Home / 19,628.31-29,443.14-7,784.34

Finding the Fourth Proportional to 19,628.31, 29,443.14 and 7,784.34

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Solution

The fourth proportional to 19,628.31, 29,443.14 and 7,784.34 is: 11,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.31 : 29,443.14 = 7,784.34 : x
  2. Step 2: Convert to fraction form
    19,628.31/29,443.14 = 7,784.34/x
  3. Step 3: Cross multiply
    19,628.31x = 29,443.14 × 7,784.34
  4. Step 4: Simplify right side
    19,628.31x = 229,195,412.43
  5. Step 5: Solve for x
    x = 229,195,412.43/19,628.31
  6. Step 6: Final answer
    x = 11,676.78

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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.