Home / 30,888.96-42,626.73-16,741.78

Finding the Fourth Proportional to 30,888.96, 42,626.73 and 16,741.78

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Solution

The fourth proportional to 30,888.96, 42,626.73 and 16,741.78 is: 23,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888.96 : 42,626.73 = 16,741.78 : x
  2. Step 2: Convert to fraction form
    30,888.96/42,626.73 = 16,741.78/x
  3. Step 3: Cross multiply
    30,888.96x = 42,626.73 × 16,741.78
  4. Step 4: Simplify right side
    30,888.96x = 713,647,335.78
  5. Step 5: Solve for x
    x = 713,647,335.78/30,888.96
  6. Step 6: Final answer
    x = 23,103.64

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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.