Home / 21,136.69-29,173.26-13,967.83

Finding the Fourth Proportional to 21,136.69, 29,173.26 and 13,967.83

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Solution

The fourth proportional to 21,136.69, 29,173.26 and 13,967.83 is: 19,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.69 : 29,173.26 = 13,967.83 : x
  2. Step 2: Convert to fraction form
    21,136.69/29,173.26 = 13,967.83/x
  3. Step 3: Cross multiply
    21,136.69x = 29,173.26 × 13,967.83
  4. Step 4: Simplify right side
    21,136.69x = 407,487,136.23
  5. Step 5: Solve for x
    x = 407,487,136.23/21,136.69
  6. Step 6: Final answer
    x = 19,278.66

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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.