Home / 20,408.43-30,612.65-6,558.51

Finding the Fourth Proportional to 20,408.43, 30,612.65 and 6,558.51

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Solution

The fourth proportional to 20,408.43, 30,612.65 and 6,558.51 is: 9,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.43 : 30,612.65 = 6,558.51 : x
  2. Step 2: Convert to fraction form
    20,408.43/30,612.65 = 6,558.51/x
  3. Step 3: Cross multiply
    20,408.43x = 30,612.65 × 6,558.51
  4. Step 4: Simplify right side
    20,408.43x = 200,773,338.36
  5. Step 5: Solve for x
    x = 200,773,338.36/20,408.43
  6. Step 6: Final answer
    x = 9,837.77

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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.