Home / 21,252.12-29,315.94-12,751.98

Finding the Fourth Proportional to 21,252.12, 29,315.94 and 12,751.98

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Solution

The fourth proportional to 21,252.12, 29,315.94 and 12,751.98 is: 17,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.12 : 29,315.94 = 12,751.98 : x
  2. Step 2: Convert to fraction form
    21,252.12/29,315.94 = 12,751.98/x
  3. Step 3: Cross multiply
    21,252.12x = 29,315.94 × 12,751.98
  4. Step 4: Simplify right side
    21,252.12x = 373,836,280.56
  5. Step 5: Solve for x
    x = 373,836,280.56/21,252.12
  6. Step 6: Final answer
    x = 17,590.54

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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.