Home / 19,735.36-27,222.88-13,018.60

Finding the Fourth Proportional to 19,735.36, 27,222.88 and 13,018.60

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Solution

The fourth proportional to 19,735.36, 27,222.88 and 13,018.60 is: 17,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.36 : 27,222.88 = 13,018.60 : x
  2. Step 2: Convert to fraction form
    19,735.36/27,222.88 = 13,018.60/x
  3. Step 3: Cross multiply
    19,735.36x = 27,222.88 × 13,018.60
  4. Step 4: Simplify right side
    19,735.36x = 354,403,785.57
  5. Step 5: Solve for x
    x = 354,403,785.57/19,735.36
  6. Step 6: Final answer
    x = 17,957.81

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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.