Home / 28,863.54-39,812.51-16,915.23

Finding the Fourth Proportional to 28,863.54, 39,812.51 and 16,915.23

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Solution

The fourth proportional to 28,863.54, 39,812.51 and 16,915.23 is: 23,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.54 : 39,812.51 = 16,915.23 : x
  2. Step 2: Convert to fraction form
    28,863.54/39,812.51 = 16,915.23/x
  3. Step 3: Cross multiply
    28,863.54x = 39,812.51 × 16,915.23
  4. Step 4: Simplify right side
    28,863.54x = 673,437,805.82
  5. Step 5: Solve for x
    x = 673,437,805.82/28,863.54
  6. Step 6: Final answer
    x = 23,331.78

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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.