Home / 21,622.56-29,840.16-12,673.14

Finding the Fourth Proportional to 21,622.56, 29,840.16 and 12,673.14

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Solution

The fourth proportional to 21,622.56, 29,840.16 and 12,673.14 is: 17,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.56 : 29,840.16 = 12,673.14 : x
  2. Step 2: Convert to fraction form
    21,622.56/29,840.16 = 12,673.14/x
  3. Step 3: Cross multiply
    21,622.56x = 29,840.16 × 12,673.14
  4. Step 4: Simplify right side
    21,622.56x = 378,168,525.30
  5. Step 5: Solve for x
    x = 378,168,525.30/21,622.56
  6. Step 6: Final answer
    x = 17,489.54

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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.