Home / 30,965.08-42,731.82-16,817.93

Finding the Fourth Proportional to 30,965.08, 42,731.82 and 16,817.93

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Solution

The fourth proportional to 30,965.08, 42,731.82 and 16,817.93 is: 23,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,965.08 : 42,731.82 = 16,817.93 : x
  2. Step 2: Convert to fraction form
    30,965.08/42,731.82 = 16,817.93/x
  3. Step 3: Cross multiply
    30,965.08x = 42,731.82 × 16,817.93
  4. Step 4: Simplify right side
    30,965.08x = 718,660,757.53
  5. Step 5: Solve for x
    x = 718,660,757.53/30,965.08
  6. Step 6: Final answer
    x = 23,208.75

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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.