Home / 28,556.89-39,382.76-18,474.82

Finding the Fourth Proportional to 28,556.89, 39,382.76 and 18,474.82

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Solution

The fourth proportional to 28,556.89, 39,382.76 and 18,474.82 is: 25,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.89 : 39,382.76 = 18,474.82 : x
  2. Step 2: Convert to fraction form
    28,556.89/39,382.76 = 18,474.82/x
  3. Step 3: Cross multiply
    28,556.89x = 39,382.76 × 18,474.82
  4. Step 4: Simplify right side
    28,556.89x = 727,589,402.10
  5. Step 5: Solve for x
    x = 727,589,402.10/28,556.89
  6. Step 6: Final answer
    x = 25,478.59

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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.