Home / 21,448.55-32,172.86-8,961.77

Finding the Fourth Proportional to 21,448.55, 32,172.86 and 8,961.77

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Solution

The fourth proportional to 21,448.55, 32,172.86 and 8,961.77 is: 13,442.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.55 : 32,172.86 = 8,961.77 : x
  2. Step 2: Convert to fraction form
    21,448.55/32,172.86 = 8,961.77/x
  3. Step 3: Cross multiply
    21,448.55x = 32,172.86 × 8,961.77
  4. Step 4: Simplify right side
    21,448.55x = 288,325,874.40
  5. Step 5: Solve for x
    x = 288,325,874.40/21,448.55
  6. Step 6: Final answer
    x = 13,442.67

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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.