Home / 28,991.78-43,486.28-10,271.52

Finding the Fourth Proportional to 28,991.78, 43,486.28 and 10,271.52

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Solution

The fourth proportional to 28,991.78, 43,486.28 and 10,271.52 is: 15,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.78 : 43,486.28 = 10,271.52 : x
  2. Step 2: Convert to fraction form
    28,991.78/43,486.28 = 10,271.52/x
  3. Step 3: Cross multiply
    28,991.78x = 43,486.28 × 10,271.52
  4. Step 4: Simplify right side
    28,991.78x = 446,670,194.75
  5. Step 5: Solve for x
    x = 446,670,194.75/28,991.78
  6. Step 6: Final answer
    x = 15,406.79

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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.