Home / 38,945.96-53,745.36-21,040.91

Finding the Fourth Proportional to 38,945.96, 53,745.36 and 21,040.91

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Solution

The fourth proportional to 38,945.96, 53,745.36 and 21,040.91 is: 29,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,945.96 : 53,745.36 = 21,040.91 : x
  2. Step 2: Convert to fraction form
    38,945.96/53,745.36 = 21,040.91/x
  3. Step 3: Cross multiply
    38,945.96x = 53,745.36 × 21,040.91
  4. Step 4: Simplify right side
    38,945.96x = 1,130,851,043.11
  5. Step 5: Solve for x
    x = 1,130,851,043.11/38,945.96
  6. Step 6: Final answer
    x = 29,036.42

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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.