Home / 31,554.50-43,520.49-20,225.03

Finding the Fourth Proportional to 31,554.50, 43,520.49 and 20,225.03

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Solution

The fourth proportional to 31,554.50, 43,520.49 and 20,225.03 is: 27,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,554.50 : 43,520.49 = 20,225.03 : x
  2. Step 2: Convert to fraction form
    31,554.50/43,520.49 = 20,225.03/x
  3. Step 3: Cross multiply
    31,554.50x = 43,520.49 × 20,225.03
  4. Step 4: Simplify right side
    31,554.50x = 880,202,998.26
  5. Step 5: Solve for x
    x = 880,202,998.26/31,554.50
  6. Step 6: Final answer
    x = 27,894.69

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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.