Home / 39,548.05-54,576.18-21,643.20

Finding the Fourth Proportional to 39,548.05, 54,576.18 and 21,643.20

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Solution

The fourth proportional to 39,548.05, 54,576.18 and 21,643.20 is: 29,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.05 : 54,576.18 = 21,643.20 : x
  2. Step 2: Convert to fraction form
    39,548.05/54,576.18 = 21,643.20/x
  3. Step 3: Cross multiply
    39,548.05x = 54,576.18 × 21,643.20
  4. Step 4: Simplify right side
    39,548.05x = 1,181,203,178.98
  5. Step 5: Solve for x
    x = 1,181,203,178.98/39,548.05
  6. Step 6: Final answer
    x = 29,867.55

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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.