Home / 19,911.88-29,851.08-13,317.94

Finding the Fourth Proportional to 19,911.88, 29,851.08 and 13,317.94

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Solution

The fourth proportional to 19,911.88, 29,851.08 and 13,317.94 is: 19,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.88 : 29,851.08 = 13,317.94 : x
  2. Step 2: Convert to fraction form
    19,911.88/29,851.08 = 13,317.94/x
  3. Step 3: Cross multiply
    19,911.88x = 29,851.08 × 13,317.94
  4. Step 4: Simplify right side
    19,911.88x = 397,554,892.38
  5. Step 5: Solve for x
    x = 397,554,892.38/19,911.88
  6. Step 6: Final answer
    x = 19,965.71

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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.