Home / 39,603.24-54,652.44-21,699.36

Finding the Fourth Proportional to 39,603.24, 54,652.44 and 21,699.36

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Solution

The fourth proportional to 39,603.24, 54,652.44 and 21,699.36 is: 29,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603.24 : 54,652.44 = 21,699.36 : x
  2. Step 2: Convert to fraction form
    39,603.24/54,652.44 = 21,699.36/x
  3. Step 3: Cross multiply
    39,603.24x = 54,652.44 × 21,699.36
  4. Step 4: Simplify right side
    39,603.24x = 1,185,922,970.44
  5. Step 5: Solve for x
    x = 1,185,922,970.44/39,603.24
  6. Step 6: Final answer
    x = 29,945.10

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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.