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Finding the Fourth Proportional to 37,152.40, 55,728.60 and 20,563.60

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Solution

The fourth proportional to 37,152.40, 55,728.60 and 20,563.60 is: 30,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,152.40 : 55,728.60 = 20,563.60 : x
  2. Step 2: Convert to fraction form
    37,152.40/55,728.60 = 20,563.60/x
  3. Step 3: Cross multiply
    37,152.40x = 55,728.60 × 20,563.60
  4. Step 4: Simplify right side
    37,152.40x = 1,145,980,638.96
  5. Step 5: Solve for x
    x = 1,145,980,638.96/37,152.40
  6. Step 6: Final answer
    x = 30,845.40

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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.