Home / 27,775.81-41,639.10-20,747.34

Finding the Fourth Proportional to 27,775.81, 41,639.10 and 20,747.34

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Solution

The fourth proportional to 27,775.81, 41,639.10 and 20,747.34 is: 31,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.81 : 41,639.10 = 20,747.34 : x
  2. Step 2: Convert to fraction form
    27,775.81/41,639.10 = 20,747.34/x
  3. Step 3: Cross multiply
    27,775.81x = 41,639.10 × 20,747.34
  4. Step 4: Simplify right side
    27,775.81x = 863,900,564.99
  5. Step 5: Solve for x
    x = 863,900,564.99/27,775.81
  6. Step 6: Final answer
    x = 31,102.62

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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.