Home / 28,464.72-39,249.36-18,379.91

Finding the Fourth Proportional to 28,464.72, 39,249.36 and 18,379.91

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Solution

The fourth proportional to 28,464.72, 39,249.36 and 18,379.91 is: 25,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.72 : 39,249.36 = 18,379.91 : x
  2. Step 2: Convert to fraction form
    28,464.72/39,249.36 = 18,379.91/x
  3. Step 3: Cross multiply
    28,464.72x = 39,249.36 × 18,379.91
  4. Step 4: Simplify right side
    28,464.72x = 721,399,802.48
  5. Step 5: Solve for x
    x = 721,399,802.48/28,464.72
  6. Step 6: Final answer
    x = 25,343.65

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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.