Home / 21,614.07-29,829.72-12,669.09

Finding the Fourth Proportional to 21,614.07, 29,829.72 and 12,669.09

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Solution

The fourth proportional to 21,614.07, 29,829.72 and 12,669.09 is: 17,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.07 : 29,829.72 = 12,669.09 : x
  2. Step 2: Convert to fraction form
    21,614.07/29,829.72 = 12,669.09/x
  3. Step 3: Cross multiply
    21,614.07x = 29,829.72 × 12,669.09
  4. Step 4: Simplify right side
    21,614.07x = 377,915,407.35
  5. Step 5: Solve for x
    x = 377,915,407.35/21,614.07
  6. Step 6: Final answer
    x = 17,484.69

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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.