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Finding the Fourth Proportional to 28,836, 43,254 and 8,060.40

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Solution

The fourth proportional to 28,836, 43,254 and 8,060.40 is: 12,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836 : 43,254 = 8,060.40 : x
  2. Step 2: Convert to fraction form
    28,836/43,254 = 8,060.40/x
  3. Step 3: Cross multiply
    28,836x = 43,254 × 8,060.40
  4. Step 4: Simplify right side
    28,836x = 348,644,541.60
  5. Step 5: Solve for x
    x = 348,644,541.60/28,836
  6. Step 6: Final answer
    x = 12,090.60

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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.