Home / 21,622.99-29,840.12-12,673.03

Finding the Fourth Proportional to 21,622.99, 29,840.12 and 12,673.03

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Solution

The fourth proportional to 21,622.99, 29,840.12 and 12,673.03 is: 17,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.99 : 29,840.12 = 12,673.03 : x
  2. Step 2: Convert to fraction form
    21,622.99/29,840.12 = 12,673.03/x
  3. Step 3: Cross multiply
    21,622.99x = 29,840.12 × 12,673.03
  4. Step 4: Simplify right side
    21,622.99x = 378,164,735.96
  5. Step 5: Solve for x
    x = 378,164,735.96/21,622.99
  6. Step 6: Final answer
    x = 17,489.01

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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.