Home / 39,825.90-54,958.68-21,677.00

Finding the Fourth Proportional to 39,825.90, 54,958.68 and 21,677.00

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Solution

The fourth proportional to 39,825.90, 54,958.68 and 21,677.00 is: 29,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.90 : 54,958.68 = 21,677.00 : x
  2. Step 2: Convert to fraction form
    39,825.90/54,958.68 = 21,677.00/x
  3. Step 3: Cross multiply
    39,825.90x = 54,958.68 × 21,677.00
  4. Step 4: Simplify right side
    39,825.90x = 1,191,339,031.57
  5. Step 5: Solve for x
    x = 1,191,339,031.57/39,825.90
  6. Step 6: Final answer
    x = 29,913.68

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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.