Home / 27,286.98-37,658.21-15,349.60

Finding the Fourth Proportional to 27,286.98, 37,658.21 and 15,349.60

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Solution

The fourth proportional to 27,286.98, 37,658.21 and 15,349.60 is: 21,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,286.98 : 37,658.21 = 15,349.60 : x
  2. Step 2: Convert to fraction form
    27,286.98/37,658.21 = 15,349.60/x
  3. Step 3: Cross multiply
    27,286.98x = 37,658.21 × 15,349.60
  4. Step 4: Simplify right side
    27,286.98x = 578,038,460.22
  5. Step 5: Solve for x
    x = 578,038,460.22/27,286.98
  6. Step 6: Final answer
    x = 21,183.67

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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.