Home / 21,355.02-29,469.74-11,795.49

Finding the Fourth Proportional to 21,355.02, 29,469.74 and 11,795.49

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Solution

The fourth proportional to 21,355.02, 29,469.74 and 11,795.49 is: 16,277.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.02 : 29,469.74 = 11,795.49 : x
  2. Step 2: Convert to fraction form
    21,355.02/29,469.74 = 11,795.49/x
  3. Step 3: Cross multiply
    21,355.02x = 29,469.74 × 11,795.49
  4. Step 4: Simplify right side
    21,355.02x = 347,609,964.50
  5. Step 5: Solve for x
    x = 347,609,964.50/21,355.02
  6. Step 6: Final answer
    x = 16,277.67

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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.