Home / 30,487.58-45,701.62-12,723.35

Finding the Fourth Proportional to 30,487.58, 45,701.62 and 12,723.35

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Solution

The fourth proportional to 30,487.58, 45,701.62 and 12,723.35 is: 19,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.58 : 45,701.62 = 12,723.35 : x
  2. Step 2: Convert to fraction form
    30,487.58/45,701.62 = 12,723.35/x
  3. Step 3: Cross multiply
    30,487.58x = 45,701.62 × 12,723.35
  4. Step 4: Simplify right side
    30,487.58x = 581,477,789.27
  5. Step 5: Solve for x
    x = 581,477,789.27/30,487.58
  6. Step 6: Final answer
    x = 19,072.62

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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.