Home / 25,321.10-34,942.92-13,991.36

Finding the Fourth Proportional to 25,321.10, 34,942.92 and 13,991.36

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Solution

The fourth proportional to 25,321.10, 34,942.92 and 13,991.36 is: 19,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.10 : 34,942.92 = 13,991.36 : x
  2. Step 2: Convert to fraction form
    25,321.10/34,942.92 = 13,991.36/x
  3. Step 3: Cross multiply
    25,321.10x = 34,942.92 × 13,991.36
  4. Step 4: Simplify right side
    25,321.10x = 488,898,973.17
  5. Step 5: Solve for x
    x = 488,898,973.17/25,321.10
  6. Step 6: Final answer
    x = 19,307.97

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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.