Home / 39,776.98-54,893.64-21,873.35

Finding the Fourth Proportional to 39,776.98, 54,893.64 and 21,873.35

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Solution

The fourth proportional to 39,776.98, 54,893.64 and 21,873.35 is: 30,186.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.98 : 54,893.64 = 21,873.35 : x
  2. Step 2: Convert to fraction form
    39,776.98/54,893.64 = 21,873.35/x
  3. Step 3: Cross multiply
    39,776.98x = 54,893.64 × 21,873.35
  4. Step 4: Simplify right side
    39,776.98x = 1,200,707,710.98
  5. Step 5: Solve for x
    x = 1,200,707,710.98/39,776.98
  6. Step 6: Final answer
    x = 30,186.00

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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.