Home / 20,752.98-31,129.44-7,606.36

Finding the Fourth Proportional to 20,752.98, 31,129.44 and 7,606.36

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Solution

The fourth proportional to 20,752.98, 31,129.44 and 7,606.36 is: 11,409.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.98 : 31,129.44 = 7,606.36 : x
  2. Step 2: Convert to fraction form
    20,752.98/31,129.44 = 7,606.36/x
  3. Step 3: Cross multiply
    20,752.98x = 31,129.44 × 7,606.36
  4. Step 4: Simplify right side
    20,752.98x = 236,781,727.24
  5. Step 5: Solve for x
    x = 236,781,727.24/20,752.98
  6. Step 6: Final answer
    x = 11,409.53

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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.