Home / 20,209.48-30,315.58-6,169.60

Finding the Fourth Proportional to 20,209.48, 30,315.58 and 6,169.60

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Solution

The fourth proportional to 20,209.48, 30,315.58 and 6,169.60 is: 9,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.48 : 30,315.58 = 6,169.60 : x
  2. Step 2: Convert to fraction form
    20,209.48/30,315.58 = 6,169.60/x
  3. Step 3: Cross multiply
    20,209.48x = 30,315.58 × 6,169.60
  4. Step 4: Simplify right side
    20,209.48x = 187,035,002.37
  5. Step 5: Solve for x
    x = 187,035,002.37/20,209.48
  6. Step 6: Final answer
    x = 9,254.82

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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.