Home / 28,807.31-43,211.27-8,030.81

Finding the Fourth Proportional to 28,807.31, 43,211.27 and 8,030.81

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Solution

The fourth proportional to 28,807.31, 43,211.27 and 8,030.81 is: 12,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.31 : 43,211.27 = 8,030.81 : x
  2. Step 2: Convert to fraction form
    28,807.31/43,211.27 = 8,030.81/x
  3. Step 3: Cross multiply
    28,807.31x = 43,211.27 × 8,030.81
  4. Step 4: Simplify right side
    28,807.31x = 347,021,627.33
  5. Step 5: Solve for x
    x = 347,021,627.33/28,807.31
  6. Step 6: Final answer
    x = 12,046.30

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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.