Home / 31,563.42-43,556.04-18,125.21

Finding the Fourth Proportional to 31,563.42, 43,556.04 and 18,125.21

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Solution

The fourth proportional to 31,563.42, 43,556.04 and 18,125.21 is: 25,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.42 : 43,556.04 = 18,125.21 : x
  2. Step 2: Convert to fraction form
    31,563.42/43,556.04 = 18,125.21/x
  3. Step 3: Cross multiply
    31,563.42x = 43,556.04 × 18,125.21
  4. Step 4: Simplify right side
    31,563.42x = 789,462,153.99
  5. Step 5: Solve for x
    x = 789,462,153.99/31,563.42
  6. Step 6: Final answer
    x = 25,011.93

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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.