Home / 20,265-30,411.06-7,795.32

Finding the Fourth Proportional to 20,265, 30,411.06 and 7,795.32

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Solution

The fourth proportional to 20,265, 30,411.06 and 7,795.32 is: 11,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265 : 30,411.06 = 7,795.32 : x
  2. Step 2: Convert to fraction form
    20,265/30,411.06 = 7,795.32/x
  3. Step 3: Cross multiply
    20,265x = 30,411.06 × 7,795.32
  4. Step 4: Simplify right side
    20,265x = 237,063,944.24
  5. Step 5: Solve for x
    x = 237,063,944.24/20,265
  6. Step 6: Final answer
    x = 11,698.20

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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.