Home / 21,095.94-31,597.26-13,677.96

Finding the Fourth Proportional to 21,095.94, 31,597.26 and 13,677.96

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Solution

The fourth proportional to 21,095.94, 31,597.26 and 13,677.96 is: 20,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.94 : 31,597.26 = 13,677.96 : x
  2. Step 2: Convert to fraction form
    21,095.94/31,597.26 = 13,677.96/x
  3. Step 3: Cross multiply
    21,095.94x = 31,597.26 × 13,677.96
  4. Step 4: Simplify right side
    21,095.94x = 432,186,058.39
  5. Step 5: Solve for x
    x = 432,186,058.39/21,095.94
  6. Step 6: Final answer
    x = 20,486.69

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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.