Home / 21,643.52-29,850.64-14,927.60

Finding the Fourth Proportional to 21,643.52, 29,850.64 and 14,927.60

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Solution

The fourth proportional to 21,643.52, 29,850.64 and 14,927.60 is: 20,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.52 : 29,850.64 = 14,927.60 : x
  2. Step 2: Convert to fraction form
    21,643.52/29,850.64 = 14,927.60/x
  3. Step 3: Cross multiply
    21,643.52x = 29,850.64 × 14,927.60
  4. Step 4: Simplify right side
    21,643.52x = 445,598,413.66
  5. Step 5: Solve for x
    x = 445,598,413.66/21,643.52
  6. Step 6: Final answer
    x = 20,588.08

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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.