Home / 28,833.68-39,768.09-18,219.44

Finding the Fourth Proportional to 28,833.68, 39,768.09 and 18,219.44

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Solution

The fourth proportional to 28,833.68, 39,768.09 and 18,219.44 is: 25,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.68 : 39,768.09 = 18,219.44 : x
  2. Step 2: Convert to fraction form
    28,833.68/39,768.09 = 18,219.44/x
  3. Step 3: Cross multiply
    28,833.68x = 39,768.09 × 18,219.44
  4. Step 4: Simplify right side
    28,833.68x = 724,552,329.67
  5. Step 5: Solve for x
    x = 724,552,329.67/28,833.68
  6. Step 6: Final answer
    x = 25,128.68

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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.