Home / 39,112.43-53,975.16-21,207.43

Finding the Fourth Proportional to 39,112.43, 53,975.16 and 21,207.43

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Solution

The fourth proportional to 39,112.43, 53,975.16 and 21,207.43 is: 29,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112.43 : 53,975.16 = 21,207.43 : x
  2. Step 2: Convert to fraction form
    39,112.43/53,975.16 = 21,207.43/x
  3. Step 3: Cross multiply
    39,112.43x = 53,975.16 × 21,207.43
  4. Step 4: Simplify right side
    39,112.43x = 1,144,674,321.40
  5. Step 5: Solve for x
    x = 1,144,674,321.40/39,112.43
  6. Step 6: Final answer
    x = 29,266.25

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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.