Home / 28,542.29-39,386.94-15,795.23

Finding the Fourth Proportional to 28,542.29, 39,386.94 and 15,795.23

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Solution

The fourth proportional to 28,542.29, 39,386.94 and 15,795.23 is: 21,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.29 : 39,386.94 = 15,795.23 : x
  2. Step 2: Convert to fraction form
    28,542.29/39,386.94 = 15,795.23/x
  3. Step 3: Cross multiply
    28,542.29x = 39,386.94 × 15,795.23
  4. Step 4: Simplify right side
    28,542.29x = 622,125,579.36
  5. Step 5: Solve for x
    x = 622,125,579.36/28,542.29
  6. Step 6: Final answer
    x = 21,796.63

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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.