Home / 19,942.80-29,899.80-11,180.40

Finding the Fourth Proportional to 19,942.80, 29,899.80 and 11,180.40

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Solution

The fourth proportional to 19,942.80, 29,899.80 and 11,180.40 is: 16,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.80 : 29,899.80 = 11,180.40 : x
  2. Step 2: Convert to fraction form
    19,942.80/29,899.80 = 11,180.40/x
  3. Step 3: Cross multiply
    19,942.80x = 29,899.80 × 11,180.40
  4. Step 4: Simplify right side
    19,942.80x = 334,291,723.92
  5. Step 5: Solve for x
    x = 334,291,723.92/19,942.80
  6. Step 6: Final answer
    x = 16,762.53

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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.