Home / 27,988.62-38,624.40-15,413.34

Finding the Fourth Proportional to 27,988.62, 38,624.40 and 15,413.34

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Solution

The fourth proportional to 27,988.62, 38,624.40 and 15,413.34 is: 21,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.62 : 38,624.40 = 15,413.34 : x
  2. Step 2: Convert to fraction form
    27,988.62/38,624.40 = 15,413.34/x
  3. Step 3: Cross multiply
    27,988.62x = 38,624.40 × 15,413.34
  4. Step 4: Simplify right side
    27,988.62x = 595,331,009.50
  5. Step 5: Solve for x
    x = 595,331,009.50/27,988.62
  6. Step 6: Final answer
    x = 21,270.47

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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.