Home / 28,542.65-39,387.89-15,796.37

Finding the Fourth Proportional to 28,542.65, 39,387.89 and 15,796.37

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Solution

The fourth proportional to 28,542.65, 39,387.89 and 15,796.37 is: 21,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.65 : 39,387.89 = 15,796.37 : x
  2. Step 2: Convert to fraction form
    28,542.65/39,387.89 = 15,796.37/x
  3. Step 3: Cross multiply
    28,542.65x = 39,387.89 × 15,796.37
  4. Step 4: Simplify right side
    28,542.65x = 622,185,683.96
  5. Step 5: Solve for x
    x = 622,185,683.96/28,542.65
  6. Step 6: Final answer
    x = 21,798.46

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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.