Home / 28,179.09-38,886.48-16,241.72

Finding the Fourth Proportional to 28,179.09, 38,886.48 and 16,241.72

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Solution

The fourth proportional to 28,179.09, 38,886.48 and 16,241.72 is: 22,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.09 : 38,886.48 = 16,241.72 : x
  2. Step 2: Convert to fraction form
    28,179.09/38,886.48 = 16,241.72/x
  3. Step 3: Cross multiply
    28,179.09x = 38,886.48 × 16,241.72
  4. Step 4: Simplify right side
    28,179.09x = 631,583,125.51
  5. Step 5: Solve for x
    x = 631,583,125.51/28,179.09
  6. Step 6: Final answer
    x = 22,413.18

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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.