Home / 28,066.30-42,099.09-8,076.32

Finding the Fourth Proportional to 28,066.30, 42,099.09 and 8,076.32

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Solution

The fourth proportional to 28,066.30, 42,099.09 and 8,076.32 is: 12,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.30 : 42,099.09 = 8,076.32 : x
  2. Step 2: Convert to fraction form
    28,066.30/42,099.09 = 8,076.32/x
  3. Step 3: Cross multiply
    28,066.30x = 42,099.09 × 8,076.32
  4. Step 4: Simplify right side
    28,066.30x = 340,005,722.55
  5. Step 5: Solve for x
    x = 340,005,722.55/28,066.30
  6. Step 6: Final answer
    x = 12,114.38

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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.