Home / 28,021.55-38,669.48-15,274.73

Finding the Fourth Proportional to 28,021.55, 38,669.48 and 15,274.73

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Solution

The fourth proportional to 28,021.55, 38,669.48 and 15,274.73 is: 21,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.55 : 38,669.48 = 15,274.73 : x
  2. Step 2: Convert to fraction form
    28,021.55/38,669.48 = 15,274.73/x
  3. Step 3: Cross multiply
    28,021.55x = 38,669.48 × 15,274.73
  4. Step 4: Simplify right side
    28,021.55x = 590,665,866.24
  5. Step 5: Solve for x
    x = 590,665,866.24/28,021.55
  6. Step 6: Final answer
    x = 21,078.99

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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.