Home / 28,340.37-39,102.62-18,256.66

Finding the Fourth Proportional to 28,340.37, 39,102.62 and 18,256.66

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Solution

The fourth proportional to 28,340.37, 39,102.62 and 18,256.66 is: 25,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.37 : 39,102.62 = 18,256.66 : x
  2. Step 2: Convert to fraction form
    28,340.37/39,102.62 = 18,256.66/x
  3. Step 3: Cross multiply
    28,340.37x = 39,102.62 × 18,256.66
  4. Step 4: Simplify right side
    28,340.37x = 713,883,049.41
  5. Step 5: Solve for x
    x = 713,883,049.41/28,340.37
  6. Step 6: Final answer
    x = 25,189.62

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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.