Home / 21,738.33-29,774.13-20,461.67

Finding the Fourth Proportional to 21,738.33, 29,774.13 and 20,461.67

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Solution

The fourth proportional to 21,738.33, 29,774.13 and 20,461.67 is: 28,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.33 : 29,774.13 = 20,461.67 : x
  2. Step 2: Convert to fraction form
    21,738.33/29,774.13 = 20,461.67/x
  3. Step 3: Cross multiply
    21,738.33x = 29,774.13 × 20,461.67
  4. Step 4: Simplify right side
    21,738.33x = 609,228,422.60
  5. Step 5: Solve for x
    x = 609,228,422.60/21,738.33
  6. Step 6: Final answer
    x = 28,025.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.