Home / 21,027.24-29,017.78-12,074.60

Finding the Fourth Proportional to 21,027.24, 29,017.78 and 12,074.60

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Solution

The fourth proportional to 21,027.24, 29,017.78 and 12,074.60 is: 16,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.24 : 29,017.78 = 12,074.60 : x
  2. Step 2: Convert to fraction form
    21,027.24/29,017.78 = 12,074.60/x
  3. Step 3: Cross multiply
    21,027.24x = 29,017.78 × 12,074.60
  4. Step 4: Simplify right side
    21,027.24x = 350,378,086.39
  5. Step 5: Solve for x
    x = 350,378,086.39/21,027.24
  6. Step 6: Final answer
    x = 16,663.06

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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.