Home / 28,771.07-43,181.33-11,253.20

Finding the Fourth Proportional to 28,771.07, 43,181.33 and 11,253.20

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Solution

The fourth proportional to 28,771.07, 43,181.33 and 11,253.20 is: 16,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.07 : 43,181.33 = 11,253.20 : x
  2. Step 2: Convert to fraction form
    28,771.07/43,181.33 = 11,253.20/x
  3. Step 3: Cross multiply
    28,771.07x = 43,181.33 × 11,253.20
  4. Step 4: Simplify right side
    28,771.07x = 485,927,870.58
  5. Step 5: Solve for x
    x = 485,927,870.58/28,771.07
  6. Step 6: Final answer
    x = 16,889.46

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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.