Home / 31,511.16-43,485.48-17,171.10

Finding the Fourth Proportional to 31,511.16, 43,485.48 and 17,171.10

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Solution

The fourth proportional to 31,511.16, 43,485.48 and 17,171.10 is: 23,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.16 : 43,485.48 = 17,171.10 : x
  2. Step 2: Convert to fraction form
    31,511.16/43,485.48 = 17,171.10/x
  3. Step 3: Cross multiply
    31,511.16x = 43,485.48 × 17,171.10
  4. Step 4: Simplify right side
    31,511.16x = 746,693,525.63
  5. Step 5: Solve for x
    x = 746,693,525.63/31,511.16
  6. Step 6: Final answer
    x = 23,696.16

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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.