Home / 39,192.94-54,085.35-21,287.56

Finding the Fourth Proportional to 39,192.94, 54,085.35 and 21,287.56

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Solution

The fourth proportional to 39,192.94, 54,085.35 and 21,287.56 is: 29,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.94 : 54,085.35 = 21,287.56 : x
  2. Step 2: Convert to fraction form
    39,192.94/54,085.35 = 21,287.56/x
  3. Step 3: Cross multiply
    39,192.94x = 54,085.35 × 21,287.56
  4. Step 4: Simplify right side
    39,192.94x = 1,151,345,133.25
  5. Step 5: Solve for x
    x = 1,151,345,133.25/39,192.94
  6. Step 6: Final answer
    x = 29,376.34

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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.