Home / 20,739.06-31,114.80-9,652.32

Finding the Fourth Proportional to 20,739.06, 31,114.80 and 9,652.32

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Solution

The fourth proportional to 20,739.06, 31,114.80 and 9,652.32 is: 14,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.06 : 31,114.80 = 9,652.32 : x
  2. Step 2: Convert to fraction form
    20,739.06/31,114.80 = 9,652.32/x
  3. Step 3: Cross multiply
    20,739.06x = 31,114.80 × 9,652.32
  4. Step 4: Simplify right side
    20,739.06x = 300,330,006.34
  5. Step 5: Solve for x
    x = 300,330,006.34/20,739.06
  6. Step 6: Final answer
    x = 14,481.37

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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.