Home / 30,537.12-42,149.52-17,965.92

Finding the Fourth Proportional to 30,537.12, 42,149.52 and 17,965.92

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Solution

The fourth proportional to 30,537.12, 42,149.52 and 17,965.92 is: 24,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.12 : 42,149.52 = 17,965.92 : x
  2. Step 2: Convert to fraction form
    30,537.12/42,149.52 = 17,965.92/x
  3. Step 3: Cross multiply
    30,537.12x = 42,149.52 × 17,965.92
  4. Step 4: Simplify right side
    30,537.12x = 757,254,904.36
  5. Step 5: Solve for x
    x = 757,254,904.36/30,537.12
  6. Step 6: Final answer
    x = 24,797.85

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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.