Home / 20,396.56-30,595.18-5,605.39

Finding the Fourth Proportional to 20,396.56, 30,595.18 and 5,605.39

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Solution

The fourth proportional to 20,396.56, 30,595.18 and 5,605.39 is: 8,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.56 : 30,595.18 = 5,605.39 : x
  2. Step 2: Convert to fraction form
    20,396.56/30,595.18 = 5,605.39/x
  3. Step 3: Cross multiply
    20,396.56x = 30,595.18 × 5,605.39
  4. Step 4: Simplify right side
    20,396.56x = 171,497,916.02
  5. Step 5: Solve for x
    x = 171,497,916.02/20,396.56
  6. Step 6: Final answer
    x = 8,408.18

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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.