Home / 28,334.88-39,087.36-18,260.64

Finding the Fourth Proportional to 28,334.88, 39,087.36 and 18,260.64

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Solution

The fourth proportional to 28,334.88, 39,087.36 and 18,260.64 is: 25,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.88 : 39,087.36 = 18,260.64 : x
  2. Step 2: Convert to fraction form
    28,334.88/39,087.36 = 18,260.64/x
  3. Step 3: Cross multiply
    28,334.88x = 39,087.36 × 18,260.64
  4. Step 4: Simplify right side
    28,334.88x = 713,760,209.51
  5. Step 5: Solve for x
    x = 713,760,209.51/28,334.88
  6. Step 6: Final answer
    x = 25,190.16

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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.