Home / 20,435.93-30,638.34-10,568.91

Finding the Fourth Proportional to 20,435.93, 30,638.34 and 10,568.91

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Solution

The fourth proportional to 20,435.93, 30,638.34 and 10,568.91 is: 15,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.93 : 30,638.34 = 10,568.91 : x
  2. Step 2: Convert to fraction form
    20,435.93/30,638.34 = 10,568.91/x
  3. Step 3: Cross multiply
    20,435.93x = 30,638.34 × 10,568.91
  4. Step 4: Simplify right side
    20,435.93x = 323,813,858.01
  5. Step 5: Solve for x
    x = 323,813,858.01/20,435.93
  6. Step 6: Final answer
    x = 15,845.32

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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.