Home / 20,335.88-30,506.34-7,185.62

Finding the Fourth Proportional to 20,335.88, 30,506.34 and 7,185.62

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Solution

The fourth proportional to 20,335.88, 30,506.34 and 7,185.62 is: 10,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.88 : 30,506.34 = 7,185.62 : x
  2. Step 2: Convert to fraction form
    20,335.88/30,506.34 = 7,185.62/x
  3. Step 3: Cross multiply
    20,335.88x = 30,506.34 × 7,185.62
  4. Step 4: Simplify right side
    20,335.88x = 219,206,966.83
  5. Step 5: Solve for x
    x = 219,206,966.83/20,335.88
  6. Step 6: Final answer
    x = 10,779.32

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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.