Home / 19,425.82-29,111.13-8,869.90

Finding the Fourth Proportional to 19,425.82, 29,111.13 and 8,869.90

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Solution

The fourth proportional to 19,425.82, 29,111.13 and 8,869.90 is: 13,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.82 : 29,111.13 = 8,869.90 : x
  2. Step 2: Convert to fraction form
    19,425.82/29,111.13 = 8,869.90/x
  3. Step 3: Cross multiply
    19,425.82x = 29,111.13 × 8,869.90
  4. Step 4: Simplify right side
    19,425.82x = 258,212,811.99
  5. Step 5: Solve for x
    x = 258,212,811.99/19,425.82
  6. Step 6: Final answer
    x = 13,292.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.