Home / 39,548.31-54,576.66-21,643.32

Finding the Fourth Proportional to 39,548.31, 54,576.66 and 21,643.32

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Solution

The fourth proportional to 39,548.31, 54,576.66 and 21,643.32 is: 29,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.31 : 54,576.66 = 21,643.32 : x
  2. Step 2: Convert to fraction form
    39,548.31/54,576.66 = 21,643.32/x
  3. Step 3: Cross multiply
    39,548.31x = 54,576.66 × 21,643.32
  4. Step 4: Simplify right side
    39,548.31x = 1,181,220,116.91
  5. Step 5: Solve for x
    x = 1,181,220,116.91/39,548.31
  6. Step 6: Final answer
    x = 29,867.78

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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.