Home / 28,379.37-39,162.04-16,279.25

Finding the Fourth Proportional to 28,379.37, 39,162.04 and 16,279.25

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Solution

The fourth proportional to 28,379.37, 39,162.04 and 16,279.25 is: 22,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.37 : 39,162.04 = 16,279.25 : x
  2. Step 2: Convert to fraction form
    28,379.37/39,162.04 = 16,279.25/x
  3. Step 3: Cross multiply
    28,379.37x = 39,162.04 × 16,279.25
  4. Step 4: Simplify right side
    28,379.37x = 637,528,464.21
  5. Step 5: Solve for x
    x = 637,528,464.21/28,379.37
  6. Step 6: Final answer
    x = 22,464.50

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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.