Home / 30,986.61-42,759.08-17,559.96

Finding the Fourth Proportional to 30,986.61, 42,759.08 and 17,559.96

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Solution

The fourth proportional to 30,986.61, 42,759.08 and 17,559.96 is: 24,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.61 : 42,759.08 = 17,559.96 : x
  2. Step 2: Convert to fraction form
    30,986.61/42,759.08 = 17,559.96/x
  3. Step 3: Cross multiply
    30,986.61x = 42,759.08 × 17,559.96
  4. Step 4: Simplify right side
    30,986.61x = 750,847,734.44
  5. Step 5: Solve for x
    x = 750,847,734.44/30,986.61
  6. Step 6: Final answer
    x = 24,231.36

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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.