Home / 39,793.99-54,914-21,887.84

Finding the Fourth Proportional to 39,793.99, 54,914 and 21,887.84

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Solution

The fourth proportional to 39,793.99, 54,914 and 21,887.84 is: 30,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,793.99 : 54,914 = 21,887.84 : x
  2. Step 2: Convert to fraction form
    39,793.99/54,914 = 21,887.84/x
  3. Step 3: Cross multiply
    39,793.99x = 54,914 × 21,887.84
  4. Step 4: Simplify right side
    39,793.99x = 1,201,948,845.76
  5. Step 5: Solve for x
    x = 1,201,948,845.76/39,793.99
  6. Step 6: Final answer
    x = 30,204.28

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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.