Home / 39,192.24-54,085.68-21,287.40

Finding the Fourth Proportional to 39,192.24, 54,085.68 and 21,287.40

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Solution

The fourth proportional to 39,192.24, 54,085.68 and 21,287.40 is: 29,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.24 : 54,085.68 = 21,287.40 : x
  2. Step 2: Convert to fraction form
    39,192.24/54,085.68 = 21,287.40/x
  3. Step 3: Cross multiply
    39,192.24x = 54,085.68 × 21,287.40
  4. Step 4: Simplify right side
    39,192.24x = 1,151,343,504.43
  5. Step 5: Solve for x
    x = 1,151,343,504.43/39,192.24
  6. Step 6: Final answer
    x = 29,376.82

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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.