Home / 19,771.60-27,297.78-11,816.32

Finding the Fourth Proportional to 19,771.60, 27,297.78 and 11,816.32

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Solution

The fourth proportional to 19,771.60, 27,297.78 and 11,816.32 is: 16,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.60 : 27,297.78 = 11,816.32 : x
  2. Step 2: Convert to fraction form
    19,771.60/27,297.78 = 11,816.32/x
  3. Step 3: Cross multiply
    19,771.60x = 27,297.78 × 11,816.32
  4. Step 4: Simplify right side
    19,771.60x = 322,559,303.77
  5. Step 5: Solve for x
    x = 322,559,303.77/19,771.60
  6. Step 6: Final answer
    x = 16,314.27

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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.