Home / 19,767.90-29,651.85-18,914.70

Finding the Fourth Proportional to 19,767.90, 29,651.85 and 18,914.70

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Solution

The fourth proportional to 19,767.90, 29,651.85 and 18,914.70 is: 28,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.90 : 29,651.85 = 18,914.70 : x
  2. Step 2: Convert to fraction form
    19,767.90/29,651.85 = 18,914.70/x
  3. Step 3: Cross multiply
    19,767.90x = 29,651.85 × 18,914.70
  4. Step 4: Simplify right side
    19,767.90x = 560,855,847.20
  5. Step 5: Solve for x
    x = 560,855,847.20/19,767.90
  6. Step 6: Final answer
    x = 28,372.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.