Home / 39,193.30-54,085.65-21,287.71

Finding the Fourth Proportional to 39,193.30, 54,085.65 and 21,287.71

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Solution

The fourth proportional to 39,193.30, 54,085.65 and 21,287.71 is: 29,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,193.30 : 54,085.65 = 21,287.71 : x
  2. Step 2: Convert to fraction form
    39,193.30/54,085.65 = 21,287.71/x
  3. Step 3: Cross multiply
    39,193.30x = 54,085.65 × 21,287.71
  4. Step 4: Simplify right side
    39,193.30x = 1,151,359,632.36
  5. Step 5: Solve for x
    x = 1,151,359,632.36/39,193.30
  6. Step 6: Final answer
    x = 29,376.44

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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.