Home / 21,540.30-32,298.30-8,377.60

Finding the Fourth Proportional to 21,540.30, 32,298.30 and 8,377.60

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Solution

The fourth proportional to 21,540.30, 32,298.30 and 8,377.60 is: 12,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.30 : 32,298.30 = 8,377.60 : x
  2. Step 2: Convert to fraction form
    21,540.30/32,298.30 = 8,377.60/x
  3. Step 3: Cross multiply
    21,540.30x = 32,298.30 × 8,377.60
  4. Step 4: Simplify right side
    21,540.30x = 270,582,238.08
  5. Step 5: Solve for x
    x = 270,582,238.08/21,540.30
  6. Step 6: Final answer
    x = 12,561.67

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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.