Home / 69,847.92-104,788.16-19,928.70

Finding the Fourth Proportional to 69,847.92, 104,788.16 and 19,928.70

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Solution

The fourth proportional to 69,847.92, 104,788.16 and 19,928.70 is: 29,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,847.92 : 104,788.16 = 19,928.70 : x
  2. Step 2: Convert to fraction form
    69,847.92/104,788.16 = 19,928.70/x
  3. Step 3: Cross multiply
    69,847.92x = 104,788.16 × 19,928.70
  4. Step 4: Simplify right side
    69,847.92x = 2,088,291,804.19
  5. Step 5: Solve for x
    x = 2,088,291,804.19/69,847.92
  6. Step 6: Final answer
    x = 29,897.69

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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.