Home / 20,124.96-30,187.77-11,235.13

Finding the Fourth Proportional to 20,124.96, 30,187.77 and 11,235.13

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Solution

The fourth proportional to 20,124.96, 30,187.77 and 11,235.13 is: 16,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.96 : 30,187.77 = 11,235.13 : x
  2. Step 2: Convert to fraction form
    20,124.96/30,187.77 = 11,235.13/x
  3. Step 3: Cross multiply
    20,124.96x = 30,187.77 × 11,235.13
  4. Step 4: Simplify right side
    20,124.96x = 339,163,520.36
  5. Step 5: Solve for x
    x = 339,163,520.36/20,124.96
  6. Step 6: Final answer
    x = 16,852.88

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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.