Home / 28,672.96-42,983.52-10,200.64

Finding the Fourth Proportional to 28,672.96, 42,983.52 and 10,200.64

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Solution

The fourth proportional to 28,672.96, 42,983.52 and 10,200.64 is: 15,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.96 : 42,983.52 = 10,200.64 : x
  2. Step 2: Convert to fraction form
    28,672.96/42,983.52 = 10,200.64/x
  3. Step 3: Cross multiply
    28,672.96x = 42,983.52 × 10,200.64
  4. Step 4: Simplify right side
    28,672.96x = 438,459,413.45
  5. Step 5: Solve for x
    x = 438,459,413.45/28,672.96
  6. Step 6: Final answer
    x = 15,291.74

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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.