Home / 21,243.72-29,316.26-11,812.29

Finding the Fourth Proportional to 21,243.72, 29,316.26 and 11,812.29

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Solution

The fourth proportional to 21,243.72, 29,316.26 and 11,812.29 is: 16,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.72 : 29,316.26 = 11,812.29 : x
  2. Step 2: Convert to fraction form
    21,243.72/29,316.26 = 11,812.29/x
  3. Step 3: Cross multiply
    21,243.72x = 29,316.26 × 11,812.29
  4. Step 4: Simplify right side
    21,243.72x = 346,292,164.84
  5. Step 5: Solve for x
    x = 346,292,164.84/21,243.72
  6. Step 6: Final answer
    x = 16,300.92

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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.