Home / 39,112.77-53,975.46-21,207.62

Finding the Fourth Proportional to 39,112.77, 53,975.46 and 21,207.62

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Solution

The fourth proportional to 39,112.77, 53,975.46 and 21,207.62 is: 29,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112.77 : 53,975.46 = 21,207.62 : x
  2. Step 2: Convert to fraction form
    39,112.77/53,975.46 = 21,207.62/x
  3. Step 3: Cross multiply
    39,112.77x = 53,975.46 × 21,207.62
  4. Step 4: Simplify right side
    39,112.77x = 1,144,691,259.47
  5. Step 5: Solve for x
    x = 1,144,691,259.47/39,112.77
  6. Step 6: Final answer
    x = 29,266.43

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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.