Home / 21,377.86-29,501.40-11,946.42

Finding the Fourth Proportional to 21,377.86, 29,501.40 and 11,946.42

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Solution

The fourth proportional to 21,377.86, 29,501.40 and 11,946.42 is: 16,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.86 : 29,501.40 = 11,946.42 : x
  2. Step 2: Convert to fraction form
    21,377.86/29,501.40 = 11,946.42/x
  3. Step 3: Cross multiply
    21,377.86x = 29,501.40 × 11,946.42
  4. Step 4: Simplify right side
    21,377.86x = 352,436,114.99
  5. Step 5: Solve for x
    x = 352,436,114.99/21,377.86
  6. Step 6: Final answer
    x = 16,486.03

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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.