Home / 30,861.42-46,290.60-10,871.91

Finding the Fourth Proportional to 30,861.42, 46,290.60 and 10,871.91

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Solution

The fourth proportional to 30,861.42, 46,290.60 and 10,871.91 is: 16,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.42 : 46,290.60 = 10,871.91 : x
  2. Step 2: Convert to fraction form
    30,861.42/46,290.60 = 10,871.91/x
  3. Step 3: Cross multiply
    30,861.42x = 46,290.60 × 10,871.91
  4. Step 4: Simplify right side
    30,861.42x = 503,267,237.05
  5. Step 5: Solve for x
    x = 503,267,237.05/30,861.42
  6. Step 6: Final answer
    x = 16,307.33

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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.