Home / 39,602.88-54,653.34-21,699.42

Finding the Fourth Proportional to 39,602.88, 54,653.34 and 21,699.42

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Solution

The fourth proportional to 39,602.88, 54,653.34 and 21,699.42 is: 29,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,602.88 : 54,653.34 = 21,699.42 : x
  2. Step 2: Convert to fraction form
    39,602.88/54,653.34 = 21,699.42/x
  3. Step 3: Cross multiply
    39,602.88x = 54,653.34 × 21,699.42
  4. Step 4: Simplify right side
    39,602.88x = 1,185,945,779.06
  5. Step 5: Solve for x
    x = 1,185,945,779.06/39,602.88
  6. Step 6: Final answer
    x = 29,945.95

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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.