Home / 28,239.94-38,972.74-17,065.54

Finding the Fourth Proportional to 28,239.94, 38,972.74 and 17,065.54

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Solution

The fourth proportional to 28,239.94, 38,972.74 and 17,065.54 is: 23,551.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.94 : 38,972.74 = 17,065.54 : x
  2. Step 2: Convert to fraction form
    28,239.94/38,972.74 = 17,065.54/x
  3. Step 3: Cross multiply
    28,239.94x = 38,972.74 × 17,065.54
  4. Step 4: Simplify right side
    28,239.94x = 665,090,853.38
  5. Step 5: Solve for x
    x = 665,090,853.38/28,239.94
  6. Step 6: Final answer
    x = 23,551.43

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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.