Home / 20,395.89-30,585.53-6,351.20

Finding the Fourth Proportional to 20,395.89, 30,585.53 and 6,351.20

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Solution

The fourth proportional to 20,395.89, 30,585.53 and 6,351.20 is: 9,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.89 : 30,585.53 = 6,351.20 : x
  2. Step 2: Convert to fraction form
    20,395.89/30,585.53 = 6,351.20/x
  3. Step 3: Cross multiply
    20,395.89x = 30,585.53 × 6,351.20
  4. Step 4: Simplify right side
    20,395.89x = 194,254,633.45
  5. Step 5: Solve for x
    x = 194,254,633.45/20,395.89
  6. Step 6: Final answer
    x = 9,524.20

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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.