Home / 20,239.21-30,364.29-7,100.83

Finding the Fourth Proportional to 20,239.21, 30,364.29 and 7,100.83

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Solution

The fourth proportional to 20,239.21, 30,364.29 and 7,100.83 is: 10,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.21 : 30,364.29 = 7,100.83 : x
  2. Step 2: Convert to fraction form
    20,239.21/30,364.29 = 7,100.83/x
  3. Step 3: Cross multiply
    20,239.21x = 30,364.29 × 7,100.83
  4. Step 4: Simplify right side
    20,239.21x = 215,611,661.36
  5. Step 5: Solve for x
    x = 215,611,661.36/20,239.21
  6. Step 6: Final answer
    x = 10,653.17

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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.