Home / 39,017.54-53,844.29-21,112.73

Finding the Fourth Proportional to 39,017.54, 53,844.29 and 21,112.73

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Solution

The fourth proportional to 39,017.54, 53,844.29 and 21,112.73 is: 29,135.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.54 : 53,844.29 = 21,112.73 : x
  2. Step 2: Convert to fraction form
    39,017.54/53,844.29 = 21,112.73/x
  3. Step 3: Cross multiply
    39,017.54x = 53,844.29 × 21,112.73
  4. Step 4: Simplify right side
    39,017.54x = 1,136,799,956.81
  5. Step 5: Solve for x
    x = 1,136,799,956.81/39,017.54
  6. Step 6: Final answer
    x = 29,135.61

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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.