Home / 20,209.08-30,322.44-7,070.88

Finding the Fourth Proportional to 20,209.08, 30,322.44 and 7,070.88

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Solution

The fourth proportional to 20,209.08, 30,322.44 and 7,070.88 is: 10,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.08 : 30,322.44 = 7,070.88 : x
  2. Step 2: Convert to fraction form
    20,209.08/30,322.44 = 7,070.88/x
  3. Step 3: Cross multiply
    20,209.08x = 30,322.44 × 7,070.88
  4. Step 4: Simplify right side
    20,209.08x = 214,406,334.55
  5. Step 5: Solve for x
    x = 214,406,334.55/20,209.08
  6. Step 6: Final answer
    x = 10,609.41

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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.