Home / 21,027.12-29,017.08-12,074.64

Finding the Fourth Proportional to 21,027.12, 29,017.08 and 12,074.64

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Solution

The fourth proportional to 21,027.12, 29,017.08 and 12,074.64 is: 16,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.12 : 29,017.08 = 12,074.64 : x
  2. Step 2: Convert to fraction form
    21,027.12/29,017.08 = 12,074.64/x
  3. Step 3: Cross multiply
    21,027.12x = 29,017.08 × 12,074.64
  4. Step 4: Simplify right side
    21,027.12x = 350,370,794.85
  5. Step 5: Solve for x
    x = 350,370,794.85/21,027.12
  6. Step 6: Final answer
    x = 16,662.80

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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.