Home / 28,072.10-38,739.24-15,496.82

Finding the Fourth Proportional to 28,072.10, 38,739.24 and 15,496.82

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Solution

The fourth proportional to 28,072.10, 38,739.24 and 15,496.82 is: 21,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.10 : 38,739.24 = 15,496.82 : x
  2. Step 2: Convert to fraction form
    28,072.10/38,739.24 = 15,496.82/x
  3. Step 3: Cross multiply
    28,072.10x = 38,739.24 × 15,496.82
  4. Step 4: Simplify right side
    28,072.10x = 600,335,029.22
  5. Step 5: Solve for x
    x = 600,335,029.22/28,072.10
  6. Step 6: Final answer
    x = 21,385.47

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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.