Home / 35,781.47-49,376.14-19,865.91

Finding the Fourth Proportional to 35,781.47, 49,376.14 and 19,865.91

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Solution

The fourth proportional to 35,781.47, 49,376.14 and 19,865.91 is: 27,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.47 : 49,376.14 = 19,865.91 : x
  2. Step 2: Convert to fraction form
    35,781.47/49,376.14 = 19,865.91/x
  3. Step 3: Cross multiply
    35,781.47x = 49,376.14 × 19,865.91
  4. Step 4: Simplify right side
    35,781.47x = 980,901,903.72
  5. Step 5: Solve for x
    x = 980,901,903.72/35,781.47
  6. Step 6: Final answer
    x = 27,413.69

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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.