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Finding the Fourth Proportional to 28,807, 43,214.82 and 10,343.32

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Solution

The fourth proportional to 28,807, 43,214.82 and 10,343.32 is: 15,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807 : 43,214.82 = 10,343.32 : x
  2. Step 2: Convert to fraction form
    28,807/43,214.82 = 10,343.32/x
  3. Step 3: Cross multiply
    28,807x = 43,214.82 × 10,343.32
  4. Step 4: Simplify right side
    28,807x = 446,984,712.00
  5. Step 5: Solve for x
    x = 446,984,712.00/28,807
  6. Step 6: Final answer
    x = 15,516.53

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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.