Home / 19,679.42-27,136.16-13,294.94

Finding the Fourth Proportional to 19,679.42, 27,136.16 and 13,294.94

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Solution

The fourth proportional to 19,679.42, 27,136.16 and 13,294.94 is: 18,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.42 : 27,136.16 = 13,294.94 : x
  2. Step 2: Convert to fraction form
    19,679.42/27,136.16 = 13,294.94/x
  3. Step 3: Cross multiply
    19,679.42x = 27,136.16 × 13,294.94
  4. Step 4: Simplify right side
    19,679.42x = 360,773,619.03
  5. Step 5: Solve for x
    x = 360,773,619.03/19,679.42
  6. Step 6: Final answer
    x = 18,332.53

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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.