Home / 28,865.98-43,265.35-12,220.48

Finding the Fourth Proportional to 28,865.98, 43,265.35 and 12,220.48

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Solution

The fourth proportional to 28,865.98, 43,265.35 and 12,220.48 is: 18,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.98 : 43,265.35 = 12,220.48 : x
  2. Step 2: Convert to fraction form
    28,865.98/43,265.35 = 12,220.48/x
  3. Step 3: Cross multiply
    28,865.98x = 43,265.35 × 12,220.48
  4. Step 4: Simplify right side
    28,865.98x = 528,723,344.37
  5. Step 5: Solve for x
    x = 528,723,344.37/28,865.98
  6. Step 6: Final answer
    x = 18,316.49

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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.