Home / 20,406.96-30,615.30-11,056.32

Finding the Fourth Proportional to 20,406.96, 30,615.30 and 11,056.32

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Solution

The fourth proportional to 20,406.96, 30,615.30 and 11,056.32 is: 16,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.96 : 30,615.30 = 11,056.32 : x
  2. Step 2: Convert to fraction form
    20,406.96/30,615.30 = 11,056.32/x
  3. Step 3: Cross multiply
    20,406.96x = 30,615.30 × 11,056.32
  4. Step 4: Simplify right side
    20,406.96x = 338,492,553.70
  5. Step 5: Solve for x
    x = 338,492,553.70/20,406.96
  6. Step 6: Final answer
    x = 16,587.11

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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.