Home / 19,542.96-29,336.28-12,981.96

Finding the Fourth Proportional to 19,542.96, 29,336.28 and 12,981.96

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Solution

The fourth proportional to 19,542.96, 29,336.28 and 12,981.96 is: 19,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.96 : 29,336.28 = 12,981.96 : x
  2. Step 2: Convert to fraction form
    19,542.96/29,336.28 = 12,981.96/x
  3. Step 3: Cross multiply
    19,542.96x = 29,336.28 × 12,981.96
  4. Step 4: Simplify right side
    19,542.96x = 380,842,413.51
  5. Step 5: Solve for x
    x = 380,842,413.51/19,542.96
  6. Step 6: Final answer
    x = 19,487.45

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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.