Home / 20,074.05-30,098.93-8,978.67

Finding the Fourth Proportional to 20,074.05, 30,098.93 and 8,978.67

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Solution

The fourth proportional to 20,074.05, 30,098.93 and 8,978.67 is: 13,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.05 : 30,098.93 = 8,978.67 : x
  2. Step 2: Convert to fraction form
    20,074.05/30,098.93 = 8,978.67/x
  3. Step 3: Cross multiply
    20,074.05x = 30,098.93 × 8,978.67
  4. Step 4: Simplify right side
    20,074.05x = 270,248,314.93
  5. Step 5: Solve for x
    x = 270,248,314.93/20,074.05
  6. Step 6: Final answer
    x = 13,462.57

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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.