Home / 27,359.55-41,039.34-21,128.67

Finding the Fourth Proportional to 27,359.55, 41,039.34 and 21,128.67

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Solution

The fourth proportional to 27,359.55, 41,039.34 and 21,128.67 is: 31,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,359.55 : 41,039.34 = 21,128.67 : x
  2. Step 2: Convert to fraction form
    27,359.55/41,039.34 = 21,128.67/x
  3. Step 3: Cross multiply
    27,359.55x = 41,039.34 × 21,128.67
  4. Step 4: Simplify right side
    27,359.55x = 867,106,671.88
  5. Step 5: Solve for x
    x = 867,106,671.88/27,359.55
  6. Step 6: Final answer
    x = 31,693.02

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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.