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Finding the Fourth Proportional to 28,873.69, 43,303.01 and 12,225.15

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Solution

The fourth proportional to 28,873.69, 43,303.01 and 12,225.15 is: 18,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873.69 : 43,303.01 = 12,225.15 : x
  2. Step 2: Convert to fraction form
    28,873.69/43,303.01 = 12,225.15/x
  3. Step 3: Cross multiply
    28,873.69x = 43,303.01 × 12,225.15
  4. Step 4: Simplify right side
    28,873.69x = 529,385,956.52
  5. Step 5: Solve for x
    x = 529,385,956.52/28,873.69
  6. Step 6: Final answer
    x = 18,334.54

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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.