Home / 39,431.82-54,407.79-22,661.58

Finding the Fourth Proportional to 39,431.82, 54,407.79 and 22,661.58

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Solution

The fourth proportional to 39,431.82, 54,407.79 and 22,661.58 is: 31,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.82 : 54,407.79 = 22,661.58 : x
  2. Step 2: Convert to fraction form
    39,431.82/54,407.79 = 22,661.58/x
  3. Step 3: Cross multiply
    39,431.82x = 54,407.79 × 22,661.58
  4. Step 4: Simplify right side
    39,431.82x = 1,232,966,485.71
  5. Step 5: Solve for x
    x = 1,232,966,485.71/39,431.82
  6. Step 6: Final answer
    x = 31,268.31

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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.