Home / 31,456-43,409.58-17,309.15

Finding the Fourth Proportional to 31,456, 43,409.58 and 17,309.15

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Solution

The fourth proportional to 31,456, 43,409.58 and 17,309.15 is: 23,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456 : 43,409.58 = 17,309.15 : x
  2. Step 2: Convert to fraction form
    31,456/43,409.58 = 17,309.15/x
  3. Step 3: Cross multiply
    31,456x = 43,409.58 × 17,309.15
  4. Step 4: Simplify right side
    31,456x = 751,382,888.04
  5. Step 5: Solve for x
    x = 751,382,888.04/31,456
  6. Step 6: Final answer
    x = 23,886.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.