Home / 20,054.70-30,106.35-19,908.90

Finding the Fourth Proportional to 20,054.70, 30,106.35 and 19,908.90

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Solution

The fourth proportional to 20,054.70, 30,106.35 and 19,908.90 is: 29,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.70 : 30,106.35 = 19,908.90 : x
  2. Step 2: Convert to fraction form
    20,054.70/30,106.35 = 19,908.90/x
  3. Step 3: Cross multiply
    20,054.70x = 30,106.35 × 19,908.90
  4. Step 4: Simplify right side
    20,054.70x = 599,384,311.52
  5. Step 5: Solve for x
    x = 599,384,311.52/20,054.70
  6. Step 6: Final answer
    x = 29,887.47

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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.