Home / 21,991.18-32,975.14-10,134.60

Finding the Fourth Proportional to 21,991.18, 32,975.14 and 10,134.60

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Solution

The fourth proportional to 21,991.18, 32,975.14 and 10,134.60 is: 15,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.18 : 32,975.14 = 10,134.60 : x
  2. Step 2: Convert to fraction form
    21,991.18/32,975.14 = 10,134.60/x
  3. Step 3: Cross multiply
    21,991.18x = 32,975.14 × 10,134.60
  4. Step 4: Simplify right side
    21,991.18x = 334,189,853.84
  5. Step 5: Solve for x
    x = 334,189,853.84/21,991.18
  6. Step 6: Final answer
    x = 15,196.54

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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.