Home / 28,096.13-42,160.43-15,615.11

Finding the Fourth Proportional to 28,096.13, 42,160.43 and 15,615.11

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Solution

The fourth proportional to 28,096.13, 42,160.43 and 15,615.11 is: 23,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.13 : 42,160.43 = 15,615.11 : x
  2. Step 2: Convert to fraction form
    28,096.13/42,160.43 = 15,615.11/x
  3. Step 3: Cross multiply
    28,096.13x = 42,160.43 × 15,615.11
  4. Step 4: Simplify right side
    28,096.13x = 658,339,896.54
  5. Step 5: Solve for x
    x = 658,339,896.54/28,096.13
  6. Step 6: Final answer
    x = 23,431.69

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1.5x scale

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.