Home / 30,814.36-42,523.83-16,667.21

Finding the Fourth Proportional to 30,814.36, 42,523.83 and 16,667.21

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Solution

The fourth proportional to 30,814.36, 42,523.83 and 16,667.21 is: 23,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,814.36 : 42,523.83 = 16,667.21 : x
  2. Step 2: Convert to fraction form
    30,814.36/42,523.83 = 16,667.21/x
  3. Step 3: Cross multiply
    30,814.36x = 42,523.83 × 16,667.21
  4. Step 4: Simplify right side
    30,814.36x = 708,753,710.92
  5. Step 5: Solve for x
    x = 708,753,710.92/30,814.36
  6. Step 6: Final answer
    x = 23,000.76

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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.