Home / 20,225.28-30,327.60-15,181.60

Finding the Fourth Proportional to 20,225.28, 30,327.60 and 15,181.60

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Solution

The fourth proportional to 20,225.28, 30,327.60 and 15,181.60 is: 22,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.28 : 30,327.60 = 15,181.60 : x
  2. Step 2: Convert to fraction form
    20,225.28/30,327.60 = 15,181.60/x
  3. Step 3: Cross multiply
    20,225.28x = 30,327.60 × 15,181.60
  4. Step 4: Simplify right side
    20,225.28x = 460,421,492.16
  5. Step 5: Solve for x
    x = 460,421,492.16/20,225.28
  6. Step 6: Final answer
    x = 22,764.65

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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.