Home / 20,025.80-27,647.60-12,482.35

Finding the Fourth Proportional to 20,025.80, 27,647.60 and 12,482.35

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Solution

The fourth proportional to 20,025.80, 27,647.60 and 12,482.35 is: 17,233.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.80 : 27,647.60 = 12,482.35 : x
  2. Step 2: Convert to fraction form
    20,025.80/27,647.60 = 12,482.35/x
  3. Step 3: Cross multiply
    20,025.80x = 27,647.60 × 12,482.35
  4. Step 4: Simplify right side
    20,025.80x = 345,107,023.78
  5. Step 5: Solve for x
    x = 345,107,023.78/20,025.80
  6. Step 6: Final answer
    x = 17,233.12

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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.