Home / 31,511.36-43,486.98-18,083.18

Finding the Fourth Proportional to 31,511.36, 43,486.98 and 18,083.18

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Solution

The fourth proportional to 31,511.36, 43,486.98 and 18,083.18 is: 24,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.36 : 43,486.98 = 18,083.18 : x
  2. Step 2: Convert to fraction form
    31,511.36/43,486.98 = 18,083.18/x
  3. Step 3: Cross multiply
    31,511.36x = 43,486.98 × 18,083.18
  4. Step 4: Simplify right side
    31,511.36x = 786,382,887.00
  5. Step 5: Solve for x
    x = 786,382,887.00/31,511.36
  6. Step 6: Final answer
    x = 24,955.54

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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.