Home / 34,076.08-47,028.77-20,647.90

Finding the Fourth Proportional to 34,076.08, 47,028.77 and 20,647.90

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Solution

The fourth proportional to 34,076.08, 47,028.77 and 20,647.90 is: 28,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,076.08 : 47,028.77 = 20,647.90 : x
  2. Step 2: Convert to fraction form
    34,076.08/47,028.77 = 20,647.90/x
  3. Step 3: Cross multiply
    34,076.08x = 47,028.77 × 20,647.90
  4. Step 4: Simplify right side
    34,076.08x = 971,045,340.08
  5. Step 5: Solve for x
    x = 971,045,340.08/34,076.08
  6. Step 6: Final answer
    x = 28,496.39

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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.