Home / 28,478.72-42,738.96-22,997.60

Finding the Fourth Proportional to 28,478.72, 42,738.96 and 22,997.60

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Solution

The fourth proportional to 28,478.72, 42,738.96 and 22,997.60 is: 34,513.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.72 : 42,738.96 = 22,997.60 : x
  2. Step 2: Convert to fraction form
    28,478.72/42,738.96 = 22,997.60/x
  3. Step 3: Cross multiply
    28,478.72x = 42,738.96 × 22,997.60
  4. Step 4: Simplify right side
    28,478.72x = 982,893,506.50
  5. Step 5: Solve for x
    x = 982,893,506.50/28,478.72
  6. Step 6: Final answer
    x = 34,513.26

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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.