Home / 19,642.94-29,440.99-13,687.58

Finding the Fourth Proportional to 19,642.94, 29,440.99 and 13,687.58

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Solution

The fourth proportional to 19,642.94, 29,440.99 and 13,687.58 is: 20,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.94 : 29,440.99 = 13,687.58 : x
  2. Step 2: Convert to fraction form
    19,642.94/29,440.99 = 13,687.58/x
  3. Step 3: Cross multiply
    19,642.94x = 29,440.99 × 13,687.58
  4. Step 4: Simplify right side
    19,642.94x = 402,975,996.62
  5. Step 5: Solve for x
    x = 402,975,996.62/19,642.94
  6. Step 6: Final answer
    x = 20,515.06

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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.