Home / 30,949.10-42,709.64-16,801.94

Finding the Fourth Proportional to 30,949.10, 42,709.64 and 16,801.94

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Solution

The fourth proportional to 30,949.10, 42,709.64 and 16,801.94 is: 23,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.10 : 42,709.64 = 16,801.94 : x
  2. Step 2: Convert to fraction form
    30,949.10/42,709.64 = 16,801.94/x
  3. Step 3: Cross multiply
    30,949.10x = 42,709.64 × 16,801.94
  4. Step 4: Simplify right side
    30,949.10x = 717,604,808.70
  5. Step 5: Solve for x
    x = 717,604,808.70/30,949.10
  6. Step 6: Final answer
    x = 23,186.61

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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.