Home / 19,639.24-29,447.34-7,945.48

Finding the Fourth Proportional to 19,639.24, 29,447.34 and 7,945.48

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Solution

The fourth proportional to 19,639.24, 29,447.34 and 7,945.48 is: 11,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.24 : 29,447.34 = 7,945.48 : x
  2. Step 2: Convert to fraction form
    19,639.24/29,447.34 = 7,945.48/x
  3. Step 3: Cross multiply
    19,639.24x = 29,447.34 × 7,945.48
  4. Step 4: Simplify right side
    19,639.24x = 233,973,251.02
  5. Step 5: Solve for x
    x = 233,973,251.02/19,639.24
  6. Step 6: Final answer
    x = 11,913.56

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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.