Home / 27,988.36-38,622.17-15,413.11

Finding the Fourth Proportional to 27,988.36, 38,622.17 and 15,413.11

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Solution

The fourth proportional to 27,988.36, 38,622.17 and 15,413.11 is: 21,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.36 : 38,622.17 = 15,413.11 : x
  2. Step 2: Convert to fraction form
    27,988.36/38,622.17 = 15,413.11/x
  3. Step 3: Cross multiply
    27,988.36x = 38,622.17 × 15,413.11
  4. Step 4: Simplify right side
    27,988.36x = 595,287,696.63
  5. Step 5: Solve for x
    x = 595,287,696.63/27,988.36
  6. Step 6: Final answer
    x = 21,269.12

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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.