Home / 39,383.90-54,347.62-22,385.78

Finding the Fourth Proportional to 39,383.90, 54,347.62 and 22,385.78

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Solution

The fourth proportional to 39,383.90, 54,347.62 and 22,385.78 is: 30,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,383.90 : 54,347.62 = 22,385.78 : x
  2. Step 2: Convert to fraction form
    39,383.90/54,347.62 = 22,385.78/x
  3. Step 3: Cross multiply
    39,383.90x = 54,347.62 × 22,385.78
  4. Step 4: Simplify right side
    39,383.90x = 1,216,613,864.84
  5. Step 5: Solve for x
    x = 1,216,613,864.84/39,383.90
  6. Step 6: Final answer
    x = 30,891.15

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Half scale
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Double scale
Find fourth proportional to 39,384.90, 54,349 and 22,386.78
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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.