Home / 28,798-39,741.36-16,222.96

Finding the Fourth Proportional to 28,798, 39,741.36 and 16,222.96

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Solution

The fourth proportional to 28,798, 39,741.36 and 16,222.96 is: 22,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798 : 39,741.36 = 16,222.96 : x
  2. Step 2: Convert to fraction form
    28,798/39,741.36 = 16,222.96/x
  3. Step 3: Cross multiply
    28,798x = 39,741.36 × 16,222.96
  4. Step 4: Simplify right side
    28,798x = 644,722,493.63
  5. Step 5: Solve for x
    x = 644,722,493.63/28,798
  6. Step 6: Final answer
    x = 22,387.75

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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.