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Finding the Fourth Proportional to 19,800.83, 29,695.19 and 7,948.36

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Solution

The fourth proportional to 19,800.83, 29,695.19 and 7,948.36 is: 11,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.83 : 29,695.19 = 7,948.36 : x
  2. Step 2: Convert to fraction form
    19,800.83/29,695.19 = 7,948.36/x
  3. Step 3: Cross multiply
    19,800.83x = 29,695.19 × 7,948.36
  4. Step 4: Simplify right side
    19,800.83x = 236,027,952.60
  5. Step 5: Solve for x
    x = 236,027,952.60/19,800.83
  6. Step 6: Final answer
    x = 11,920.10

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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.