Home / 31,221.12-46,739.40-20,094.96

Finding the Fourth Proportional to 31,221.12, 46,739.40 and 20,094.96

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Solution

The fourth proportional to 31,221.12, 46,739.40 and 20,094.96 is: 30,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.12 : 46,739.40 = 20,094.96 : x
  2. Step 2: Convert to fraction form
    31,221.12/46,739.40 = 20,094.96/x
  3. Step 3: Cross multiply
    31,221.12x = 46,739.40 × 20,094.96
  4. Step 4: Simplify right side
    31,221.12x = 939,226,373.42
  5. Step 5: Solve for x
    x = 939,226,373.42/31,221.12
  6. Step 6: Final answer
    x = 30,083.05

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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.