Home / 28,629.27-39,500.31-18,558.13

Finding the Fourth Proportional to 28,629.27, 39,500.31 and 18,558.13

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Solution

The fourth proportional to 28,629.27, 39,500.31 and 18,558.13 is: 25,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.27 : 39,500.31 = 18,558.13 : x
  2. Step 2: Convert to fraction form
    28,629.27/39,500.31 = 18,558.13/x
  3. Step 3: Cross multiply
    28,629.27x = 39,500.31 × 18,558.13
  4. Step 4: Simplify right side
    28,629.27x = 733,051,888.02
  5. Step 5: Solve for x
    x = 733,051,888.02/28,629.27
  6. Step 6: Final answer
    x = 25,604.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.