Home / 20,114.61-30,181.65-8,277.12

Finding the Fourth Proportional to 20,114.61, 30,181.65 and 8,277.12

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Solution

The fourth proportional to 20,114.61, 30,181.65 and 8,277.12 is: 12,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.61 : 30,181.65 = 8,277.12 : x
  2. Step 2: Convert to fraction form
    20,114.61/30,181.65 = 8,277.12/x
  3. Step 3: Cross multiply
    20,114.61x = 30,181.65 × 8,277.12
  4. Step 4: Simplify right side
    20,114.61x = 249,817,138.85
  5. Step 5: Solve for x
    x = 249,817,138.85/20,114.61
  6. Step 6: Final answer
    x = 12,419.69

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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.