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Finding the Fourth Proportional to 28,928.48, 43,350.60 and 14,120.60

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Solution

The fourth proportional to 28,928.48, 43,350.60 and 14,120.60 is: 21,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.48 : 43,350.60 = 14,120.60 : x
  2. Step 2: Convert to fraction form
    28,928.48/43,350.60 = 14,120.60/x
  3. Step 3: Cross multiply
    28,928.48x = 43,350.60 × 14,120.60
  4. Step 4: Simplify right side
    28,928.48x = 612,136,482.36
  5. Step 5: Solve for x
    x = 612,136,482.36/28,928.48
  6. Step 6: Final answer
    x = 21,160.34

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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.