Home / 39,054.43-53,895.01-21,149.43

Finding the Fourth Proportional to 39,054.43, 53,895.01 and 21,149.43

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Solution

The fourth proportional to 39,054.43, 53,895.01 and 21,149.43 is: 29,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.43 : 53,895.01 = 21,149.43 : x
  2. Step 2: Convert to fraction form
    39,054.43/53,895.01 = 21,149.43/x
  3. Step 3: Cross multiply
    39,054.43x = 53,895.01 × 21,149.43
  4. Step 4: Simplify right side
    39,054.43x = 1,139,848,919.84
  5. Step 5: Solve for x
    x = 1,139,848,919.84/39,054.43
  6. Step 6: Final answer
    x = 29,186.16

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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.