Home / 28,717.56-43,032.36-19,322.78

Finding the Fourth Proportional to 28,717.56, 43,032.36 and 19,322.78

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Solution

The fourth proportional to 28,717.56, 43,032.36 and 19,322.78 is: 28,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.56 : 43,032.36 = 19,322.78 : x
  2. Step 2: Convert to fraction form
    28,717.56/43,032.36 = 19,322.78/x
  3. Step 3: Cross multiply
    28,717.56x = 43,032.36 × 19,322.78
  4. Step 4: Simplify right side
    28,717.56x = 831,504,610.00
  5. Step 5: Solve for x
    x = 831,504,610.00/28,717.56
  6. Step 6: Final answer
    x = 28,954.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.