Home / 39,676.17-54,756.51-21,774.63

Finding the Fourth Proportional to 39,676.17, 54,756.51 and 21,774.63

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Solution

The fourth proportional to 39,676.17, 54,756.51 and 21,774.63 is: 30,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,676.17 : 54,756.51 = 21,774.63 : x
  2. Step 2: Convert to fraction form
    39,676.17/54,756.51 = 21,774.63/x
  3. Step 3: Cross multiply
    39,676.17x = 54,756.51 × 21,774.63
  4. Step 4: Simplify right side
    39,676.17x = 1,192,302,745.34
  5. Step 5: Solve for x
    x = 1,192,302,745.34/39,676.17
  6. Step 6: Final answer
    x = 30,050.85

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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.