Home / 39,270.33-54,193.59-21,366.09

Finding the Fourth Proportional to 39,270.33, 54,193.59 and 21,366.09

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Solution

The fourth proportional to 39,270.33, 54,193.59 and 21,366.09 is: 29,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.33 : 54,193.59 = 21,366.09 : x
  2. Step 2: Convert to fraction form
    39,270.33/54,193.59 = 21,366.09/x
  3. Step 3: Cross multiply
    39,270.33x = 54,193.59 × 21,366.09
  4. Step 4: Simplify right side
    39,270.33x = 1,157,905,121.36
  5. Step 5: Solve for x
    x = 1,157,905,121.36/39,270.33
  6. Step 6: Final answer
    x = 29,485.50

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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.