Home / 39,171.95-54,057.37-21,266.57

Finding the Fourth Proportional to 39,171.95, 54,057.37 and 21,266.57

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Solution

The fourth proportional to 39,171.95, 54,057.37 and 21,266.57 is: 29,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.95 : 54,057.37 = 21,266.57 : x
  2. Step 2: Convert to fraction form
    39,171.95/54,057.37 = 21,266.57/x
  3. Step 3: Cross multiply
    39,171.95x = 54,057.37 × 21,266.57
  4. Step 4: Simplify right side
    39,171.95x = 1,149,614,572.83
  5. Step 5: Solve for x
    x = 1,149,614,572.83/39,171.95
  6. Step 6: Final answer
    x = 29,347.91

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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.