Home / 39,649.54-54,717.94-21,745.19

Finding the Fourth Proportional to 39,649.54, 54,717.94 and 21,745.19

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Solution

The fourth proportional to 39,649.54, 54,717.94 and 21,745.19 is: 30,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.54 : 54,717.94 = 21,745.19 : x
  2. Step 2: Convert to fraction form
    39,649.54/54,717.94 = 21,745.19/x
  3. Step 3: Cross multiply
    39,649.54x = 54,717.94 × 21,745.19
  4. Step 4: Simplify right side
    39,649.54x = 1,189,852,001.71
  5. Step 5: Solve for x
    x = 1,189,852,001.71/39,649.54
  6. Step 6: Final answer
    x = 30,009.23

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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.