Home / 19,971.46-27,560.78-11,019.60

Finding the Fourth Proportional to 19,971.46, 27,560.78 and 11,019.60

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Solution

The fourth proportional to 19,971.46, 27,560.78 and 11,019.60 is: 15,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.46 : 27,560.78 = 11,019.60 : x
  2. Step 2: Convert to fraction form
    19,971.46/27,560.78 = 11,019.60/x
  3. Step 3: Cross multiply
    19,971.46x = 27,560.78 × 11,019.60
  4. Step 4: Simplify right side
    19,971.46x = 303,708,771.29
  5. Step 5: Solve for x
    x = 303,708,771.29/19,971.46
  6. Step 6: Final answer
    x = 15,207.14

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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.