Home / 28,400.37-39,189.69-16,467.72

Finding the Fourth Proportional to 28,400.37, 39,189.69 and 16,467.72

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Solution

The fourth proportional to 28,400.37, 39,189.69 and 16,467.72 is: 22,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.37 : 39,189.69 = 16,467.72 : x
  2. Step 2: Convert to fraction form
    28,400.37/39,189.69 = 16,467.72/x
  3. Step 3: Cross multiply
    28,400.37x = 39,189.69 × 16,467.72
  4. Step 4: Simplify right side
    28,400.37x = 645,364,841.81
  5. Step 5: Solve for x
    x = 645,364,841.81/28,400.37
  6. Step 6: Final answer
    x = 22,723.82

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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.