Home / 50,003.46-75,005.27-20,421.30

Finding the Fourth Proportional to 50,003.46, 75,005.27 and 20,421.30

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Solution

The fourth proportional to 50,003.46, 75,005.27 and 20,421.30 is: 30,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,003.46 : 75,005.27 = 20,421.30 : x
  2. Step 2: Convert to fraction form
    50,003.46/75,005.27 = 20,421.30/x
  3. Step 3: Cross multiply
    50,003.46x = 75,005.27 × 20,421.30
  4. Step 4: Simplify right side
    50,003.46x = 1,531,705,018.14
  5. Step 5: Solve for x
    x = 1,531,705,018.14/50,003.46
  6. Step 6: Final answer
    x = 30,631.98

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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.