Home / 30,216.85-45,279.10-12,677.11

Finding the Fourth Proportional to 30,216.85, 45,279.10 and 12,677.11

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Solution

The fourth proportional to 30,216.85, 45,279.10 and 12,677.11 is: 18,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.85 : 45,279.10 = 12,677.11 : x
  2. Step 2: Convert to fraction form
    30,216.85/45,279.10 = 12,677.11/x
  3. Step 3: Cross multiply
    30,216.85x = 45,279.10 × 12,677.11
  4. Step 4: Simplify right side
    30,216.85x = 574,008,034.05
  5. Step 5: Solve for x
    x = 574,008,034.05/30,216.85
  6. Step 6: Final answer
    x = 18,996.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.