Home / 32,147.60-48,214.20-21,131.60

Finding the Fourth Proportional to 32,147.60, 48,214.20 and 21,131.60

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Solution

The fourth proportional to 32,147.60, 48,214.20 and 21,131.60 is: 31,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,147.60 : 48,214.20 = 21,131.60 : x
  2. Step 2: Convert to fraction form
    32,147.60/48,214.20 = 21,131.60/x
  3. Step 3: Cross multiply
    32,147.60x = 48,214.20 × 21,131.60
  4. Step 4: Simplify right side
    32,147.60x = 1,018,843,188.72
  5. Step 5: Solve for x
    x = 1,018,843,188.72/32,147.60
  6. Step 6: Final answer
    x = 31,692.67

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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.