Home / 19,701.40-29,546.70-8,015.80

Finding the Fourth Proportional to 19,701.40, 29,546.70 and 8,015.80

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Solution

The fourth proportional to 19,701.40, 29,546.70 and 8,015.80 is: 12,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.40 : 29,546.70 = 8,015.80 : x
  2. Step 2: Convert to fraction form
    19,701.40/29,546.70 = 8,015.80/x
  3. Step 3: Cross multiply
    19,701.40x = 29,546.70 × 8,015.80
  4. Step 4: Simplify right side
    19,701.40x = 236,840,437.86
  5. Step 5: Solve for x
    x = 236,840,437.86/19,701.40
  6. Step 6: Final answer
    x = 12,021.50

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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.