Home / 20,343.20-30,466.20-16,455.20

Finding the Fourth Proportional to 20,343.20, 30,466.20 and 16,455.20

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Solution

The fourth proportional to 20,343.20, 30,466.20 and 16,455.20 is: 24,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.20 : 30,466.20 = 16,455.20 : x
  2. Step 2: Convert to fraction form
    20,343.20/30,466.20 = 16,455.20/x
  3. Step 3: Cross multiply
    20,343.20x = 30,466.20 × 16,455.20
  4. Step 4: Simplify right side
    20,343.20x = 501,327,414.24
  5. Step 5: Solve for x
    x = 501,327,414.24/20,343.20
  6. Step 6: Final answer
    x = 24,643.49

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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.