Home / 28,784.64-43,190.56-12,148.48

Finding the Fourth Proportional to 28,784.64, 43,190.56 and 12,148.48

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Solution

The fourth proportional to 28,784.64, 43,190.56 and 12,148.48 is: 18,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.64 : 43,190.56 = 12,148.48 : x
  2. Step 2: Convert to fraction form
    28,784.64/43,190.56 = 12,148.48/x
  3. Step 3: Cross multiply
    28,784.64x = 43,190.56 × 12,148.48
  4. Step 4: Simplify right side
    28,784.64x = 524,699,654.35
  5. Step 5: Solve for x
    x = 524,699,654.35/28,784.64
  6. Step 6: Final answer
    x = 18,228.46

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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.