Home / 28,274.78-38,993.73-17,665.46

Finding the Fourth Proportional to 28,274.78, 38,993.73 and 17,665.46

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Solution

The fourth proportional to 28,274.78, 38,993.73 and 17,665.46 is: 24,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.78 : 38,993.73 = 17,665.46 : x
  2. Step 2: Convert to fraction form
    28,274.78/38,993.73 = 17,665.46/x
  3. Step 3: Cross multiply
    28,274.78x = 38,993.73 × 17,665.46
  4. Step 4: Simplify right side
    28,274.78x = 688,842,177.57
  5. Step 5: Solve for x
    x = 688,842,177.57/28,274.78
  6. Step 6: Final answer
    x = 24,362.42

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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.