Home / 39,962.99-55,150.26-21,814.79

Finding the Fourth Proportional to 39,962.99, 55,150.26 and 21,814.79

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Solution

The fourth proportional to 39,962.99, 55,150.26 and 21,814.79 is: 30,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,962.99 : 55,150.26 = 21,814.79 : x
  2. Step 2: Convert to fraction form
    39,962.99/55,150.26 = 21,814.79/x
  3. Step 3: Cross multiply
    39,962.99x = 55,150.26 × 21,814.79
  4. Step 4: Simplify right side
    39,962.99x = 1,203,091,147.55
  5. Step 5: Solve for x
    x = 1,203,091,147.55/39,962.99
  6. Step 6: Final answer
    x = 30,105.14

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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.