Home / 19,628.11-29,420.77-9,639.73

Finding the Fourth Proportional to 19,628.11, 29,420.77 and 9,639.73

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Solution

The fourth proportional to 19,628.11, 29,420.77 and 9,639.73 is: 14,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.11 : 29,420.77 = 9,639.73 : x
  2. Step 2: Convert to fraction form
    19,628.11/29,420.77 = 9,639.73/x
  3. Step 3: Cross multiply
    19,628.11x = 29,420.77 × 9,639.73
  4. Step 4: Simplify right side
    19,628.11x = 283,608,083.89
  5. Step 5: Solve for x
    x = 283,608,083.89/19,628.11
  6. Step 6: Final answer
    x = 14,449.08

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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.