Home / 20,732.63-28,611.03-11,780.14

Finding the Fourth Proportional to 20,732.63, 28,611.03 and 11,780.14

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Solution

The fourth proportional to 20,732.63, 28,611.03 and 11,780.14 is: 16,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.63 : 28,611.03 = 11,780.14 : x
  2. Step 2: Convert to fraction form
    20,732.63/28,611.03 = 11,780.14/x
  3. Step 3: Cross multiply
    20,732.63x = 28,611.03 × 11,780.14
  4. Step 4: Simplify right side
    20,732.63x = 337,041,867.42
  5. Step 5: Solve for x
    x = 337,041,867.42/20,732.63
  6. Step 6: Final answer
    x = 16,256.59

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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.