Home / 19,181.55-28,740.65-8,770.35

Finding the Fourth Proportional to 19,181.55, 28,740.65 and 8,770.35

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Solution

The fourth proportional to 19,181.55, 28,740.65 and 8,770.35 is: 13,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.55 : 28,740.65 = 8,770.35 : x
  2. Step 2: Convert to fraction form
    19,181.55/28,740.65 = 8,770.35/x
  3. Step 3: Cross multiply
    19,181.55x = 28,740.65 × 8,770.35
  4. Step 4: Simplify right side
    19,181.55x = 252,065,515.88
  5. Step 5: Solve for x
    x = 252,065,515.88/19,181.55
  6. Step 6: Final answer
    x = 13,141.04

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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.