Home / 28,865.92-43,265.26-12,220.42

Finding the Fourth Proportional to 28,865.92, 43,265.26 and 12,220.42

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Solution

The fourth proportional to 28,865.92, 43,265.26 and 12,220.42 is: 18,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.92 : 43,265.26 = 12,220.42 : x
  2. Step 2: Convert to fraction form
    28,865.92/43,265.26 = 12,220.42/x
  3. Step 3: Cross multiply
    28,865.92x = 43,265.26 × 12,220.42
  4. Step 4: Simplify right side
    28,865.92x = 528,719,555.72
  5. Step 5: Solve for x
    x = 528,719,555.72/28,865.92
  6. Step 6: Final answer
    x = 18,316.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.