Home / 19,765.45-27,285.22-12,604.98

Finding the Fourth Proportional to 19,765.45, 27,285.22 and 12,604.98

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Solution

The fourth proportional to 19,765.45, 27,285.22 and 12,604.98 is: 17,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.45 : 27,285.22 = 12,604.98 : x
  2. Step 2: Convert to fraction form
    19,765.45/27,285.22 = 12,604.98/x
  3. Step 3: Cross multiply
    19,765.45x = 27,285.22 × 12,604.98
  4. Step 4: Simplify right side
    19,765.45x = 343,929,770.47
  5. Step 5: Solve for x
    x = 343,929,770.47/19,765.45
  6. Step 6: Final answer
    x = 17,400.55

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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.