Home / 28,119.52-38,804.70-15,544.18

Finding the Fourth Proportional to 28,119.52, 38,804.70 and 15,544.18

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Solution

The fourth proportional to 28,119.52, 38,804.70 and 15,544.18 is: 21,450.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.52 : 38,804.70 = 15,544.18 : x
  2. Step 2: Convert to fraction form
    28,119.52/38,804.70 = 15,544.18/x
  3. Step 3: Cross multiply
    28,119.52x = 38,804.70 × 15,544.18
  4. Step 4: Simplify right side
    28,119.52x = 603,187,241.65
  5. Step 5: Solve for x
    x = 603,187,241.65/28,119.52
  6. Step 6: Final answer
    x = 21,450.84

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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.