Home / 20,203.65-30,319.31-7,056.03

Finding the Fourth Proportional to 20,203.65, 30,319.31 and 7,056.03

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Solution

The fourth proportional to 20,203.65, 30,319.31 and 7,056.03 is: 10,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.65 : 30,319.31 = 7,056.03 : x
  2. Step 2: Convert to fraction form
    20,203.65/30,319.31 = 7,056.03/x
  3. Step 3: Cross multiply
    20,203.65x = 30,319.31 × 7,056.03
  4. Step 4: Simplify right side
    20,203.65x = 213,933,960.94
  5. Step 5: Solve for x
    x = 213,933,960.94/20,203.65
  6. Step 6: Final answer
    x = 10,588.88

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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.