Home / 28,060.26-38,723.96-15,485.82

Finding the Fourth Proportional to 28,060.26, 38,723.96 and 15,485.82

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Solution

The fourth proportional to 28,060.26, 38,723.96 and 15,485.82 is: 21,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.26 : 38,723.96 = 15,485.82 : x
  2. Step 2: Convert to fraction form
    28,060.26/38,723.96 = 15,485.82/x
  3. Step 3: Cross multiply
    28,060.26x = 38,723.96 × 15,485.82
  4. Step 4: Simplify right side
    28,060.26x = 599,672,274.25
  5. Step 5: Solve for x
    x = 599,672,274.25/28,060.26
  6. Step 6: Final answer
    x = 21,370.87

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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.