Home / 39,676.90-54,752.28-21,771.46

Finding the Fourth Proportional to 39,676.90, 54,752.28 and 21,771.46

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Solution

The fourth proportional to 39,676.90, 54,752.28 and 21,771.46 is: 30,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.90 : 54,752.28 = 21,771.46 : x
  2. Step 2: Convert to fraction form
    39,676.90/54,752.28 = 21,771.46/x
  3. Step 3: Cross multiply
    39,676.90x = 54,752.28 × 21,771.46
  4. Step 4: Simplify right side
    39,676.90x = 1,192,037,073.93
  5. Step 5: Solve for x
    x = 1,192,037,073.93/39,676.90
  6. Step 6: Final answer
    x = 30,043.60

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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.