Home / 28,455.06-39,275.03-17,286.42

Finding the Fourth Proportional to 28,455.06, 39,275.03 and 17,286.42

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Solution

The fourth proportional to 28,455.06, 39,275.03 and 17,286.42 is: 23,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,455.06 : 39,275.03 = 17,286.42 : x
  2. Step 2: Convert to fraction form
    28,455.06/39,275.03 = 17,286.42/x
  3. Step 3: Cross multiply
    28,455.06x = 39,275.03 × 17,286.42
  4. Step 4: Simplify right side
    28,455.06x = 678,924,664.09
  5. Step 5: Solve for x
    x = 678,924,664.09/28,455.06
  6. Step 6: Final answer
    x = 23,859.54

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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.