Home / 18,847.81-25,987.12-16,290.96

Finding the Fourth Proportional to 18,847.81, 25,987.12 and 16,290.96

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Solution

The fourth proportional to 18,847.81, 25,987.12 and 16,290.96 is: 22,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.81 : 25,987.12 = 16,290.96 : x
  2. Step 2: Convert to fraction form
    18,847.81/25,987.12 = 16,290.96/x
  3. Step 3: Cross multiply
    18,847.81x = 25,987.12 × 16,290.96
  4. Step 4: Simplify right side
    18,847.81x = 423,355,132.44
  5. Step 5: Solve for x
    x = 423,355,132.44/18,847.81
  6. Step 6: Final answer
    x = 22,461.77

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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.