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Finding the Fourth Proportional to 36,263, 54,394.86 and 12,890.36

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Solution

The fourth proportional to 36,263, 54,394.86 and 12,890.36 is: 19,335.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,263 : 54,394.86 = 12,890.36 : x
  2. Step 2: Convert to fraction form
    36,263/54,394.86 = 12,890.36/x
  3. Step 3: Cross multiply
    36,263x = 54,394.86 × 12,890.36
  4. Step 4: Simplify right side
    36,263x = 701,169,327.55
  5. Step 5: Solve for x
    x = 701,169,327.55/36,263
  6. Step 6: Final answer
    x = 19,335.67

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1.5x scale

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.