Home / 20,210.37-30,303.41-7,731.31

Finding the Fourth Proportional to 20,210.37, 30,303.41 and 7,731.31

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Solution

The fourth proportional to 20,210.37, 30,303.41 and 7,731.31 is: 11,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.37 : 30,303.41 = 7,731.31 : x
  2. Step 2: Convert to fraction form
    20,210.37/30,303.41 = 7,731.31/x
  3. Step 3: Cross multiply
    20,210.37x = 30,303.41 × 7,731.31
  4. Step 4: Simplify right side
    20,210.37x = 234,285,056.77
  5. Step 5: Solve for x
    x = 234,285,056.77/20,210.37
  6. Step 6: Final answer
    x = 11,592.32

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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.