Home / 20,269.53-27,968.76-11,316.60

Finding the Fourth Proportional to 20,269.53, 27,968.76 and 11,316.60

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Solution

The fourth proportional to 20,269.53, 27,968.76 and 11,316.60 is: 15,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.53 : 27,968.76 = 11,316.60 : x
  2. Step 2: Convert to fraction form
    20,269.53/27,968.76 = 11,316.60/x
  3. Step 3: Cross multiply
    20,269.53x = 27,968.76 × 11,316.60
  4. Step 4: Simplify right side
    20,269.53x = 316,511,269.42
  5. Step 5: Solve for x
    x = 316,511,269.42/20,269.53
  6. Step 6: Final answer
    x = 15,615.13

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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.