Home / 39,125.21-53,992.52-21,220.26

Finding the Fourth Proportional to 39,125.21, 53,992.52 and 21,220.26

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Solution

The fourth proportional to 39,125.21, 53,992.52 and 21,220.26 is: 29,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,125.21 : 53,992.52 = 21,220.26 : x
  2. Step 2: Convert to fraction form
    39,125.21/53,992.52 = 21,220.26/x
  3. Step 3: Cross multiply
    39,125.21x = 53,992.52 × 21,220.26
  4. Step 4: Simplify right side
    39,125.21x = 1,145,735,206.35
  5. Step 5: Solve for x
    x = 1,145,735,206.35/39,125.21
  6. Step 6: Final answer
    x = 29,283.81

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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.