Home / 20,396.37-30,594.89-5,605.20

Finding the Fourth Proportional to 20,396.37, 30,594.89 and 5,605.20

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Solution

The fourth proportional to 20,396.37, 30,594.89 and 5,605.20 is: 8,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.37 : 30,594.89 = 5,605.20 : x
  2. Step 2: Convert to fraction form
    20,396.37/30,594.89 = 5,605.20/x
  3. Step 3: Cross multiply
    20,396.37x = 30,594.89 × 5,605.20
  4. Step 4: Simplify right side
    20,396.37x = 171,490,491.44
  5. Step 5: Solve for x
    x = 171,490,491.44/20,396.37
  6. Step 6: Final answer
    x = 8,407.89

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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.