Home / 27,270.10-37,634.79-15,172.12

Finding the Fourth Proportional to 27,270.10, 37,634.79 and 15,172.12

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Solution

The fourth proportional to 27,270.10, 37,634.79 and 15,172.12 is: 20,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.10 : 37,634.79 = 15,172.12 : x
  2. Step 2: Convert to fraction form
    27,270.10/37,634.79 = 15,172.12/x
  3. Step 3: Cross multiply
    27,270.10x = 37,634.79 × 15,172.12
  4. Step 4: Simplify right side
    27,270.10x = 570,999,550.05
  5. Step 5: Solve for x
    x = 570,999,550.05/27,270.10
  6. Step 6: Final answer
    x = 20,938.67

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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.