Home / 39,383.19-54,348.57-21,478.14

Finding the Fourth Proportional to 39,383.19, 54,348.57 and 21,478.14

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Solution

The fourth proportional to 39,383.19, 54,348.57 and 21,478.14 is: 29,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,383.19 : 54,348.57 = 21,478.14 : x
  2. Step 2: Convert to fraction form
    39,383.19/54,348.57 = 21,478.14/x
  3. Step 3: Cross multiply
    39,383.19x = 54,348.57 × 21,478.14
  4. Step 4: Simplify right side
    39,383.19x = 1,167,306,195.26
  5. Step 5: Solve for x
    x = 1,167,306,195.26/39,383.19
  6. Step 6: Final answer
    x = 29,639.71

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Find fourth proportional to 39,384.19, 54,349.95 and 21,479.14
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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.