Home / 19,865.71-27,413.82-10,913.02

Finding the Fourth Proportional to 19,865.71, 27,413.82 and 10,913.02

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Solution

The fourth proportional to 19,865.71, 27,413.82 and 10,913.02 is: 15,059.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.71 : 27,413.82 = 10,913.02 : x
  2. Step 2: Convert to fraction form
    19,865.71/27,413.82 = 10,913.02/x
  3. Step 3: Cross multiply
    19,865.71x = 27,413.82 × 10,913.02
  4. Step 4: Simplify right side
    19,865.71x = 299,167,428.16
  5. Step 5: Solve for x
    x = 299,167,428.16/19,865.71
  6. Step 6: Final answer
    x = 15,059.49

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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.