Home / 19,992.36-29,988.63-8,305.59

Finding the Fourth Proportional to 19,992.36, 29,988.63 and 8,305.59

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Solution

The fourth proportional to 19,992.36, 29,988.63 and 8,305.59 is: 12,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.36 : 29,988.63 = 8,305.59 : x
  2. Step 2: Convert to fraction form
    19,992.36/29,988.63 = 8,305.59/x
  3. Step 3: Cross multiply
    19,992.36x = 29,988.63 × 8,305.59
  4. Step 4: Simplify right side
    19,992.36x = 249,073,265.44
  5. Step 5: Solve for x
    x = 249,073,265.44/19,992.36
  6. Step 6: Final answer
    x = 12,458.42

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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.