Home / 28,309.24-38,999.22-19,795.44

Finding the Fourth Proportional to 28,309.24, 38,999.22 and 19,795.44

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Solution

The fourth proportional to 28,309.24, 38,999.22 and 19,795.44 is: 27,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.24 : 38,999.22 = 19,795.44 : x
  2. Step 2: Convert to fraction form
    28,309.24/38,999.22 = 19,795.44/x
  3. Step 3: Cross multiply
    28,309.24x = 38,999.22 × 19,795.44
  4. Step 4: Simplify right side
    28,309.24x = 772,006,719.56
  5. Step 5: Solve for x
    x = 772,006,719.56/28,309.24
  6. Step 6: Final answer
    x = 27,270.49

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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.