Home / 20,474.96-28,245.99-14,800.70

Finding the Fourth Proportional to 20,474.96, 28,245.99 and 14,800.70

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Solution

The fourth proportional to 20,474.96, 28,245.99 and 14,800.70 is: 20,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.96 : 28,245.99 = 14,800.70 : x
  2. Step 2: Convert to fraction form
    20,474.96/28,245.99 = 14,800.70/x
  3. Step 3: Cross multiply
    20,474.96x = 28,245.99 × 14,800.70
  4. Step 4: Simplify right side
    20,474.96x = 418,060,494.81
  5. Step 5: Solve for x
    x = 418,060,494.81/20,474.96
  6. Step 6: Final answer
    x = 20,418.14

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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.