Home / 20,548.35-28,373.49-13,006.85

Finding the Fourth Proportional to 20,548.35, 28,373.49 and 13,006.85

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Solution

The fourth proportional to 20,548.35, 28,373.49 and 13,006.85 is: 17,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.35 : 28,373.49 = 13,006.85 : x
  2. Step 2: Convert to fraction form
    20,548.35/28,373.49 = 13,006.85/x
  3. Step 3: Cross multiply
    20,548.35x = 28,373.49 × 13,006.85
  4. Step 4: Simplify right side
    20,548.35x = 369,049,586.54
  5. Step 5: Solve for x
    x = 369,049,586.54/20,548.35
  6. Step 6: Final answer
    x = 17,960.06

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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.