Home / 20,291.72-28,000.89-11,794.01

Finding the Fourth Proportional to 20,291.72, 28,000.89 and 11,794.01

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Solution

The fourth proportional to 20,291.72, 28,000.89 and 11,794.01 is: 16,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.72 : 28,000.89 = 11,794.01 : x
  2. Step 2: Convert to fraction form
    20,291.72/28,000.89 = 11,794.01/x
  3. Step 3: Cross multiply
    20,291.72x = 28,000.89 × 11,794.01
  4. Step 4: Simplify right side
    20,291.72x = 330,242,636.66
  5. Step 5: Solve for x
    x = 330,242,636.66/20,291.72
  6. Step 6: Final answer
    x = 16,274.75

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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.