Home / 36,316.48-54,485.64-12,939.88

Finding the Fourth Proportional to 36,316.48, 54,485.64 and 12,939.88

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Solution

The fourth proportional to 36,316.48, 54,485.64 and 12,939.88 is: 19,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,316.48 : 54,485.64 = 12,939.88 : x
  2. Step 2: Convert to fraction form
    36,316.48/54,485.64 = 12,939.88/x
  3. Step 3: Cross multiply
    36,316.48x = 54,485.64 × 12,939.88
  4. Step 4: Simplify right side
    36,316.48x = 705,037,643.32
  5. Step 5: Solve for x
    x = 705,037,643.32/36,316.48
  6. Step 6: Final answer
    x = 19,413.71

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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.