Home / 39,054.09-53,894.78-21,149.04

Finding the Fourth Proportional to 39,054.09, 53,894.78 and 21,149.04

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Solution

The fourth proportional to 39,054.09, 53,894.78 and 21,149.04 is: 29,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.09 : 53,894.78 = 21,149.04 : x
  2. Step 2: Convert to fraction form
    39,054.09/53,894.78 = 21,149.04/x
  3. Step 3: Cross multiply
    39,054.09x = 53,894.78 × 21,149.04
  4. Step 4: Simplify right side
    39,054.09x = 1,139,822,858.01
  5. Step 5: Solve for x
    x = 1,139,822,858.01/39,054.09
  6. Step 6: Final answer
    x = 29,185.75

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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.