Home / 20,003.58-29,968.11-12,509.46

Finding the Fourth Proportional to 20,003.58, 29,968.11 and 12,509.46

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Solution

The fourth proportional to 20,003.58, 29,968.11 and 12,509.46 is: 18,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.58 : 29,968.11 = 12,509.46 : x
  2. Step 2: Convert to fraction form
    20,003.58/29,968.11 = 12,509.46/x
  3. Step 3: Cross multiply
    20,003.58x = 29,968.11 × 12,509.46
  4. Step 4: Simplify right side
    20,003.58x = 374,884,873.32
  5. Step 5: Solve for x
    x = 374,884,873.32/20,003.58
  6. Step 6: Final answer
    x = 18,740.89

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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.