Home / 20,525.91-30,790.83-9,435.69

Finding the Fourth Proportional to 20,525.91, 30,790.83 and 9,435.69

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Solution

The fourth proportional to 20,525.91, 30,790.83 and 9,435.69 is: 14,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.91 : 30,790.83 = 9,435.69 : x
  2. Step 2: Convert to fraction form
    20,525.91/30,790.83 = 9,435.69/x
  3. Step 3: Cross multiply
    20,525.91x = 30,790.83 × 9,435.69
  4. Step 4: Simplify right side
    20,525.91x = 290,532,762.11
  5. Step 5: Solve for x
    x = 290,532,762.11/20,525.91
  6. Step 6: Final answer
    x = 14,154.44

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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.