Home / 39,171.56-54,054.86-21,266.36

Finding the Fourth Proportional to 39,171.56, 54,054.86 and 21,266.36

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Solution

The fourth proportional to 39,171.56, 54,054.86 and 21,266.36 is: 29,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.56 : 54,054.86 = 21,266.36 : x
  2. Step 2: Convert to fraction form
    39,171.56/54,054.86 = 21,266.36/x
  3. Step 3: Cross multiply
    39,171.56x = 54,054.86 × 21,266.36
  4. Step 4: Simplify right side
    39,171.56x = 1,149,550,112.51
  5. Step 5: Solve for x
    x = 1,149,550,112.51/39,171.56
  6. Step 6: Final answer
    x = 29,346.55

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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.