Home / 39,171.15-54,056.21-21,266.15

Finding the Fourth Proportional to 39,171.15, 54,056.21 and 21,266.15

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Solution

The fourth proportional to 39,171.15, 54,056.21 and 21,266.15 is: 29,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.15 : 54,056.21 = 21,266.15 : x
  2. Step 2: Convert to fraction form
    39,171.15/54,056.21 = 21,266.15/x
  3. Step 3: Cross multiply
    39,171.15x = 54,056.21 × 21,266.15
  4. Step 4: Simplify right side
    39,171.15x = 1,149,567,093.68
  5. Step 5: Solve for x
    x = 1,149,567,093.68/39,171.15
  6. Step 6: Final answer
    x = 29,347.29

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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.