Home / 30,907.80-42,652.53-16,760.61

Finding the Fourth Proportional to 30,907.80, 42,652.53 and 16,760.61

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Solution

The fourth proportional to 30,907.80, 42,652.53 and 16,760.61 is: 23,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.80 : 42,652.53 = 16,760.61 : x
  2. Step 2: Convert to fraction form
    30,907.80/42,652.53 = 16,760.61/x
  3. Step 3: Cross multiply
    30,907.80x = 42,652.53 × 16,760.61
  4. Step 4: Simplify right side
    30,907.80x = 714,882,420.84
  5. Step 5: Solve for x
    x = 714,882,420.84/30,907.80
  6. Step 6: Final answer
    x = 23,129.51

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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.