Home / 28,655.36-39,542.62-15,907.79

Finding the Fourth Proportional to 28,655.36, 39,542.62 and 15,907.79

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Solution

The fourth proportional to 28,655.36, 39,542.62 and 15,907.79 is: 21,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.36 : 39,542.62 = 15,907.79 : x
  2. Step 2: Convert to fraction form
    28,655.36/39,542.62 = 15,907.79/x
  3. Step 3: Cross multiply
    28,655.36x = 39,542.62 × 15,907.79
  4. Step 4: Simplify right side
    28,655.36x = 629,035,695.01
  5. Step 5: Solve for x
    x = 629,035,695.01/28,655.36
  6. Step 6: Final answer
    x = 21,951.76

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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.