Home / 28,031.76-38,661.95-17,961.14

Finding the Fourth Proportional to 28,031.76, 38,661.95 and 17,961.14

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Solution

The fourth proportional to 28,031.76, 38,661.95 and 17,961.14 is: 24,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.76 : 38,661.95 = 17,961.14 : x
  2. Step 2: Convert to fraction form
    28,031.76/38,661.95 = 17,961.14/x
  3. Step 3: Cross multiply
    28,031.76x = 38,661.95 × 17,961.14
  4. Step 4: Simplify right side
    28,031.76x = 694,412,413.51
  5. Step 5: Solve for x
    x = 694,412,413.51/28,031.76
  6. Step 6: Final answer
    x = 24,772.34

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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.