Home / 30,907.91-42,652.94-16,760.75

Finding the Fourth Proportional to 30,907.91, 42,652.94 and 16,760.75

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Solution

The fourth proportional to 30,907.91, 42,652.94 and 16,760.75 is: 23,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.91 : 42,652.94 = 16,760.75 : x
  2. Step 2: Convert to fraction form
    30,907.91/42,652.94 = 16,760.75/x
  3. Step 3: Cross multiply
    30,907.91x = 42,652.94 × 16,760.75
  4. Step 4: Simplify right side
    30,907.91x = 714,895,412.64
  5. Step 5: Solve for x
    x = 714,895,412.64/30,907.91
  6. Step 6: Final answer
    x = 23,129.85

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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.