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Finding the Fourth Proportional to 20,606.64, 30,884.04 and 14,774.64

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Solution

The fourth proportional to 20,606.64, 30,884.04 and 14,774.64 is: 22,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.64 : 30,884.04 = 14,774.64 : x
  2. Step 2: Convert to fraction form
    20,606.64/30,884.04 = 14,774.64/x
  3. Step 3: Cross multiply
    20,606.64x = 30,884.04 × 14,774.64
  4. Step 4: Simplify right side
    20,606.64x = 456,300,572.75
  5. Step 5: Solve for x
    x = 456,300,572.75/20,606.64
  6. Step 6: Final answer
    x = 22,143.38

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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.