Home / 30,811.00-42,519.15-16,663.84

Finding the Fourth Proportional to 30,811.00, 42,519.15 and 16,663.84

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Solution

The fourth proportional to 30,811.00, 42,519.15 and 16,663.84 is: 22,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.00 : 42,519.15 = 16,663.84 : x
  2. Step 2: Convert to fraction form
    30,811.00/42,519.15 = 16,663.84/x
  3. Step 3: Cross multiply
    30,811.00x = 42,519.15 × 16,663.84
  4. Step 4: Simplify right side
    30,811.00x = 708,532,099.94
  5. Step 5: Solve for x
    x = 708,532,099.94/30,811.00
  6. Step 6: Final answer
    x = 22,996.08

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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.