Home / 21,564.68-29,693.94-18,413.96

Finding the Fourth Proportional to 21,564.68, 29,693.94 and 18,413.96

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Solution

The fourth proportional to 21,564.68, 29,693.94 and 18,413.96 is: 25,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.68 : 29,693.94 = 18,413.96 : x
  2. Step 2: Convert to fraction form
    21,564.68/29,693.94 = 18,413.96/x
  3. Step 3: Cross multiply
    21,564.68x = 29,693.94 × 18,413.96
  4. Step 4: Simplify right side
    21,564.68x = 546,783,023.40
  5. Step 5: Solve for x
    x = 546,783,023.40/21,564.68
  6. Step 6: Final answer
    x = 25,355.49

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1.5x scale

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.