Home / 39,192.30-54,085.77-21,287.34

Finding the Fourth Proportional to 39,192.30, 54,085.77 and 21,287.34

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Solution

The fourth proportional to 39,192.30, 54,085.77 and 21,287.34 is: 29,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.30 : 54,085.77 = 21,287.34 : x
  2. Step 2: Convert to fraction form
    39,192.30/54,085.77 = 21,287.34/x
  3. Step 3: Cross multiply
    39,192.30x = 54,085.77 × 21,287.34
  4. Step 4: Simplify right side
    39,192.30x = 1,151,342,175.15
  5. Step 5: Solve for x
    x = 1,151,342,175.15/39,192.30
  6. Step 6: Final answer
    x = 29,376.74

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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.