Home / 31,120.56-46,656.06-11,388.12

Finding the Fourth Proportional to 31,120.56, 46,656.06 and 11,388.12

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Solution

The fourth proportional to 31,120.56, 46,656.06 and 11,388.12 is: 17,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.56 : 46,656.06 = 11,388.12 : x
  2. Step 2: Convert to fraction form
    31,120.56/46,656.06 = 11,388.12/x
  3. Step 3: Cross multiply
    31,120.56x = 46,656.06 × 11,388.12
  4. Step 4: Simplify right side
    31,120.56x = 531,324,810.01
  5. Step 5: Solve for x
    x = 531,324,810.01/31,120.56
  6. Step 6: Final answer
    x = 17,073.11

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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.