Home / 20,758.91-28,638.56-14,474.93

Finding the Fourth Proportional to 20,758.91, 28,638.56 and 14,474.93

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Solution

The fourth proportional to 20,758.91, 28,638.56 and 14,474.93 is: 19,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.91 : 28,638.56 = 14,474.93 : x
  2. Step 2: Convert to fraction form
    20,758.91/28,638.56 = 14,474.93/x
  3. Step 3: Cross multiply
    20,758.91x = 28,638.56 × 14,474.93
  4. Step 4: Simplify right side
    20,758.91x = 414,541,044.30
  5. Step 5: Solve for x
    x = 414,541,044.30/20,758.91
  6. Step 6: Final answer
    x = 19,969.31

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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.