Home / 18,421.69-27,628.62-5,270.53

Finding the Fourth Proportional to 18,421.69, 27,628.62 and 5,270.53

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Solution

The fourth proportional to 18,421.69, 27,628.62 and 5,270.53 is: 7,904.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.69 : 27,628.62 = 5,270.53 : x
  2. Step 2: Convert to fraction form
    18,421.69/27,628.62 = 5,270.53/x
  3. Step 3: Cross multiply
    18,421.69x = 27,628.62 × 5,270.53
  4. Step 4: Simplify right side
    18,421.69x = 145,617,470.57
  5. Step 5: Solve for x
    x = 145,617,470.57/18,421.69
  6. Step 6: Final answer
    x = 7,904.67

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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.