Home / 28,637.82-39,542.31-18,573.30

Finding the Fourth Proportional to 28,637.82, 39,542.31 and 18,573.30

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Solution

The fourth proportional to 28,637.82, 39,542.31 and 18,573.30 is: 25,645.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.82 : 39,542.31 = 18,573.30 : x
  2. Step 2: Convert to fraction form
    28,637.82/39,542.31 = 18,573.30/x
  3. Step 3: Cross multiply
    28,637.82x = 39,542.31 × 18,573.30
  4. Step 4: Simplify right side
    28,637.82x = 734,431,186.32
  5. Step 5: Solve for x
    x = 734,431,186.32/28,637.82
  6. Step 6: Final answer
    x = 25,645.50

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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.