Home / 28,320.53-39,081.33-18,249.39

Finding the Fourth Proportional to 28,320.53, 39,081.33 and 18,249.39

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Solution

The fourth proportional to 28,320.53, 39,081.33 and 18,249.39 is: 25,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.53 : 39,081.33 = 18,249.39 : x
  2. Step 2: Convert to fraction form
    28,320.53/39,081.33 = 18,249.39/x
  3. Step 3: Cross multiply
    28,320.53x = 39,081.33 × 18,249.39
  4. Step 4: Simplify right side
    28,320.53x = 713,210,432.89
  5. Step 5: Solve for x
    x = 713,210,432.89/28,320.53
  6. Step 6: Final answer
    x = 25,183.52

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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.