Home / 19,889.55-29,830.68-8,042.69

Finding the Fourth Proportional to 19,889.55, 29,830.68 and 8,042.69

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Solution

The fourth proportional to 19,889.55, 29,830.68 and 8,042.69 is: 12,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.55 : 29,830.68 = 8,042.69 : x
  2. Step 2: Convert to fraction form
    19,889.55/29,830.68 = 8,042.69/x
  3. Step 3: Cross multiply
    19,889.55x = 29,830.68 × 8,042.69
  4. Step 4: Simplify right side
    19,889.55x = 239,918,986.31
  5. Step 5: Solve for x
    x = 239,918,986.31/19,889.55
  6. Step 6: Final answer
    x = 12,062.56

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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.