Home / 21,362,379.48-29,479,961.88-11,573,014.32

Finding the Fourth Proportional to 21,362,379.48, 29,479,961.88 and 11,573,014.32

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Solution

The fourth proportional to 21,362,379.48, 29,479,961.88 and 11,573,014.32 is: 15,970,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362,379.48 : 29,479,961.88 = 11,573,014.32 : x
  2. Step 2: Convert to fraction form
    21,362,379.48/29,479,961.88 = 11,573,014.32/x
  3. Step 3: Cross multiply
    21,362,379.48x = 29,479,961.88 × 11,573,014.32
  4. Step 4: Simplify right side
    21,362,379.48x = 341,172,020,990,294.12
  5. Step 5: Solve for x
    x = 341,172,020,990,294.12/21,362,379.48
  6. Step 6: Final answer
    x = 15,970,693.78

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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.