Home / 39,858.52-55,004.88-21,953.92

Finding the Fourth Proportional to 39,858.52, 55,004.88 and 21,953.92

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Solution

The fourth proportional to 39,858.52, 55,004.88 and 21,953.92 is: 30,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.52 : 55,004.88 = 21,953.92 : x
  2. Step 2: Convert to fraction form
    39,858.52/55,004.88 = 21,953.92/x
  3. Step 3: Cross multiply
    39,858.52x = 55,004.88 × 21,953.92
  4. Step 4: Simplify right side
    39,858.52x = 1,207,572,735.13
  5. Step 5: Solve for x
    x = 1,207,572,735.13/39,858.52
  6. Step 6: Final answer
    x = 30,296.48

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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.