Home / 20,383.81-30,584.50-11,030.40

Finding the Fourth Proportional to 20,383.81, 30,584.50 and 11,030.40

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Solution

The fourth proportional to 20,383.81, 30,584.50 and 11,030.40 is: 16,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.81 : 30,584.50 = 11,030.40 : x
  2. Step 2: Convert to fraction form
    20,383.81/30,584.50 = 11,030.40/x
  3. Step 3: Cross multiply
    20,383.81x = 30,584.50 × 11,030.40
  4. Step 4: Simplify right side
    20,383.81x = 337,359,241.22
  5. Step 5: Solve for x
    x = 337,359,241.22/20,383.81
  6. Step 6: Final answer
    x = 16,550.35

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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.