Home / 25,814.20-38,663.70-19,951.80

Finding the Fourth Proportional to 25,814.20, 38,663.70 and 19,951.80

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Solution

The fourth proportional to 25,814.20, 38,663.70 and 19,951.80 is: 29,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,814.20 : 38,663.70 = 19,951.80 : x
  2. Step 2: Convert to fraction form
    25,814.20/38,663.70 = 19,951.80/x
  3. Step 3: Cross multiply
    25,814.20x = 38,663.70 × 19,951.80
  4. Step 4: Simplify right side
    25,814.20x = 771,410,409.66
  5. Step 5: Solve for x
    x = 771,410,409.66/25,814.20
  6. Step 6: Final answer
    x = 29,883.18

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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.