Home / 39,039.08-53,873.28-21,133.92

Finding the Fourth Proportional to 39,039.08, 53,873.28 and 21,133.92

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Solution

The fourth proportional to 39,039.08, 53,873.28 and 21,133.92 is: 29,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039.08 : 53,873.28 = 21,133.92 : x
  2. Step 2: Convert to fraction form
    39,039.08/53,873.28 = 21,133.92/x
  3. Step 3: Cross multiply
    39,039.08x = 53,873.28 × 21,133.92
  4. Step 4: Simplify right side
    39,039.08x = 1,138,553,791.68
  5. Step 5: Solve for x
    x = 1,138,553,791.68/39,039.08
  6. Step 6: Final answer
    x = 29,164.47

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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.