Home / 28,045.78-38,683.90-16,706.54

Finding the Fourth Proportional to 28,045.78, 38,683.90 and 16,706.54

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Solution

The fourth proportional to 28,045.78, 38,683.90 and 16,706.54 is: 23,043.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.78 : 38,683.90 = 16,706.54 : x
  2. Step 2: Convert to fraction form
    28,045.78/38,683.90 = 16,706.54/x
  3. Step 3: Cross multiply
    28,045.78x = 38,683.90 × 16,706.54
  4. Step 4: Simplify right side
    28,045.78x = 646,274,069.69
  5. Step 5: Solve for x
    x = 646,274,069.69/28,045.78
  6. Step 6: Final answer
    x = 23,043.54

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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.