Home / 30,814.46-42,523.85-16,667.31

Finding the Fourth Proportional to 30,814.46, 42,523.85 and 16,667.31

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Solution

The fourth proportional to 30,814.46, 42,523.85 and 16,667.31 is: 23,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,814.46 : 42,523.85 = 16,667.31 : x
  2. Step 2: Convert to fraction form
    30,814.46/42,523.85 = 16,667.31/x
  3. Step 3: Cross multiply
    30,814.46x = 42,523.85 × 16,667.31
  4. Step 4: Simplify right side
    30,814.46x = 708,758,190.34
  5. Step 5: Solve for x
    x = 708,758,190.34/30,814.46
  6. Step 6: Final answer
    x = 23,000.83

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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.