Home / 20,587.72-30,837.84-11,800.84

Finding the Fourth Proportional to 20,587.72, 30,837.84 and 11,800.84

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Solution

The fourth proportional to 20,587.72, 30,837.84 and 11,800.84 is: 17,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.72 : 30,837.84 = 11,800.84 : x
  2. Step 2: Convert to fraction form
    20,587.72/30,837.84 = 11,800.84/x
  3. Step 3: Cross multiply
    20,587.72x = 30,837.84 × 11,800.84
  4. Step 4: Simplify right side
    20,587.72x = 363,912,415.79
  5. Step 5: Solve for x
    x = 363,912,415.79/20,587.72
  6. Step 6: Final answer
    x = 17,676.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.