Home / 31,560.50-43,554.88-18,135.96

Finding the Fourth Proportional to 31,560.50, 43,554.88 and 18,135.96

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Solution

The fourth proportional to 31,560.50, 43,554.88 and 18,135.96 is: 25,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.50 : 43,554.88 = 18,135.96 : x
  2. Step 2: Convert to fraction form
    31,560.50/43,554.88 = 18,135.96/x
  3. Step 3: Cross multiply
    31,560.50x = 43,554.88 × 18,135.96
  4. Step 4: Simplify right side
    31,560.50x = 789,909,561.48
  5. Step 5: Solve for x
    x = 789,909,561.48/31,560.50
  6. Step 6: Final answer
    x = 25,028.42

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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.