Home / 19,855.08-27,399.60-10,902.51

Finding the Fourth Proportional to 19,855.08, 27,399.60 and 10,902.51

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Solution

The fourth proportional to 19,855.08, 27,399.60 and 10,902.51 is: 15,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.08 : 27,399.60 = 10,902.51 : x
  2. Step 2: Convert to fraction form
    19,855.08/27,399.60 = 10,902.51/x
  3. Step 3: Cross multiply
    19,855.08x = 27,399.60 × 10,902.51
  4. Step 4: Simplify right side
    19,855.08x = 298,724,413.00
  5. Step 5: Solve for x
    x = 298,724,413.00/19,855.08
  6. Step 6: Final answer
    x = 15,045.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.