Home / 21,608.39-29,819.40-12,048.16

Finding the Fourth Proportional to 21,608.39, 29,819.40 and 12,048.16

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Solution

The fourth proportional to 21,608.39, 29,819.40 and 12,048.16 is: 16,626.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.39 : 29,819.40 = 12,048.16 : x
  2. Step 2: Convert to fraction form
    21,608.39/29,819.40 = 12,048.16/x
  3. Step 3: Cross multiply
    21,608.39x = 29,819.40 × 12,048.16
  4. Step 4: Simplify right side
    21,608.39x = 359,268,902.30
  5. Step 5: Solve for x
    x = 359,268,902.30/21,608.39
  6. Step 6: Final answer
    x = 16,626.36

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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.