Home / 39,192.19-54,085.38-21,287.49

Finding the Fourth Proportional to 39,192.19, 54,085.38 and 21,287.49

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Solution

The fourth proportional to 39,192.19, 54,085.38 and 21,287.49 is: 29,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.19 : 54,085.38 = 21,287.49 : x
  2. Step 2: Convert to fraction form
    39,192.19/54,085.38 = 21,287.49/x
  3. Step 3: Cross multiply
    39,192.19x = 54,085.38 × 21,287.49
  4. Step 4: Simplify right side
    39,192.19x = 1,151,342,108.89
  5. Step 5: Solve for x
    x = 1,151,342,108.89/39,192.19
  6. Step 6: Final answer
    x = 29,376.83

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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.