Home / 20,395.37-30,586.58-13,863.53

Finding the Fourth Proportional to 20,395.37, 30,586.58 and 13,863.53

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Solution

The fourth proportional to 20,395.37, 30,586.58 and 13,863.53 is: 20,790.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.37 : 30,586.58 = 13,863.53 : x
  2. Step 2: Convert to fraction form
    20,395.37/30,586.58 = 13,863.53/x
  3. Step 3: Cross multiply
    20,395.37x = 30,586.58 × 13,863.53
  4. Step 4: Simplify right side
    20,395.37x = 424,037,969.43
  5. Step 5: Solve for x
    x = 424,037,969.43/20,395.37
  6. Step 6: Final answer
    x = 20,790.89

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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.