Home / 28,028.76-38,657.80-17,958.14

Finding the Fourth Proportional to 28,028.76, 38,657.80 and 17,958.14

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Solution

The fourth proportional to 28,028.76, 38,657.80 and 17,958.14 is: 24,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.76 : 38,657.80 = 17,958.14 : x
  2. Step 2: Convert to fraction form
    28,028.76/38,657.80 = 17,958.14/x
  3. Step 3: Cross multiply
    28,028.76x = 38,657.80 × 17,958.14
  4. Step 4: Simplify right side
    28,028.76x = 694,222,013.65
  5. Step 5: Solve for x
    x = 694,222,013.65/28,028.76
  6. Step 6: Final answer
    x = 24,768.21

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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.