Home / 30,952.58-42,713.90-16,805.42

Finding the Fourth Proportional to 30,952.58, 42,713.90 and 16,805.42

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Solution

The fourth proportional to 30,952.58, 42,713.90 and 16,805.42 is: 23,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,952.58 : 42,713.90 = 16,805.42 : x
  2. Step 2: Convert to fraction form
    30,952.58/42,713.90 = 16,805.42/x
  3. Step 3: Cross multiply
    30,952.58x = 42,713.90 × 16,805.42
  4. Step 4: Simplify right side
    30,952.58x = 717,825,195.20
  5. Step 5: Solve for x
    x = 717,825,195.20/30,952.58
  6. Step 6: Final answer
    x = 23,191.13

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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.