Home / 28,683.60-43,025.40-8,968.20

Finding the Fourth Proportional to 28,683.60, 43,025.40 and 8,968.20

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Solution

The fourth proportional to 28,683.60, 43,025.40 and 8,968.20 is: 13,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.60 : 43,025.40 = 8,968.20 : x
  2. Step 2: Convert to fraction form
    28,683.60/43,025.40 = 8,968.20/x
  3. Step 3: Cross multiply
    28,683.60x = 43,025.40 × 8,968.20
  4. Step 4: Simplify right side
    28,683.60x = 385,860,392.28
  5. Step 5: Solve for x
    x = 385,860,392.28/28,683.60
  6. Step 6: Final answer
    x = 13,452.30

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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.