Home / 31,511.41-43,486.73-18,085.12

Finding the Fourth Proportional to 31,511.41, 43,486.73 and 18,085.12

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Solution

The fourth proportional to 31,511.41, 43,486.73 and 18,085.12 is: 24,958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.41 : 43,486.73 = 18,085.12 : x
  2. Step 2: Convert to fraction form
    31,511.41/43,486.73 = 18,085.12/x
  3. Step 3: Cross multiply
    31,511.41x = 43,486.73 × 18,085.12
  4. Step 4: Simplify right side
    31,511.41x = 786,462,730.46
  5. Step 5: Solve for x
    x = 786,462,730.46/31,511.41
  6. Step 6: Final answer
    x = 24,958.03

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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.