Home / 31,511.09-43,483.34-18,083.45

Finding the Fourth Proportional to 31,511.09, 43,483.34 and 18,083.45

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Solution

The fourth proportional to 31,511.09, 43,483.34 and 18,083.45 is: 24,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.09 : 43,483.34 = 18,083.45 : x
  2. Step 2: Convert to fraction form
    31,511.09/43,483.34 = 18,083.45/x
  3. Step 3: Cross multiply
    31,511.09x = 43,483.34 × 18,083.45
  4. Step 4: Simplify right side
    31,511.09x = 786,328,496.89
  5. Step 5: Solve for x
    x = 786,328,496.89/31,511.09
  6. Step 6: Final answer
    x = 24,954.03

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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.