Home / 19,784.78-29,677.10-8,098.02

Finding the Fourth Proportional to 19,784.78, 29,677.10 and 8,098.02

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Solution

The fourth proportional to 19,784.78, 29,677.10 and 8,098.02 is: 12,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.78 : 29,677.10 = 8,098.02 : x
  2. Step 2: Convert to fraction form
    19,784.78/29,677.10 = 8,098.02/x
  3. Step 3: Cross multiply
    19,784.78x = 29,677.10 × 8,098.02
  4. Step 4: Simplify right side
    19,784.78x = 240,325,749.34
  5. Step 5: Solve for x
    x = 240,325,749.34/19,784.78
  6. Step 6: Final answer
    x = 12,147.00

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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.