Home / 39,171.24-54,056.70-21,266.40

Finding the Fourth Proportional to 39,171.24, 54,056.70 and 21,266.40

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Solution

The fourth proportional to 39,171.24, 54,056.70 and 21,266.40 is: 29,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.24 : 54,056.70 = 21,266.40 : x
  2. Step 2: Convert to fraction form
    39,171.24/54,056.70 = 21,266.40/x
  3. Step 3: Cross multiply
    39,171.24x = 54,056.70 × 21,266.40
  4. Step 4: Simplify right side
    39,171.24x = 1,149,591,404.88
  5. Step 5: Solve for x
    x = 1,149,591,404.88/39,171.24
  6. Step 6: Final answer
    x = 29,347.84

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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.