Home / 20,734.07-28,604.00-13,176.35

Finding the Fourth Proportional to 20,734.07, 28,604.00 and 13,176.35

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Solution

The fourth proportional to 20,734.07, 28,604.00 and 13,176.35 is: 18,177.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.07 : 28,604.00 = 13,176.35 : x
  2. Step 2: Convert to fraction form
    20,734.07/28,604.00 = 13,176.35/x
  3. Step 3: Cross multiply
    20,734.07x = 28,604.00 × 13,176.35
  4. Step 4: Simplify right side
    20,734.07x = 376,896,205.32
  5. Step 5: Solve for x
    x = 376,896,205.32/20,734.07
  6. Step 6: Final answer
    x = 18,177.63

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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.