Home / 21,243.42-29,316.51-11,812.62

Finding the Fourth Proportional to 21,243.42, 29,316.51 and 11,812.62

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Solution

The fourth proportional to 21,243.42, 29,316.51 and 11,812.62 is: 16,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.42 : 29,316.51 = 11,812.62 : x
  2. Step 2: Convert to fraction form
    21,243.42/29,316.51 = 11,812.62/x
  3. Step 3: Cross multiply
    21,243.42x = 29,316.51 × 11,812.62
  4. Step 4: Simplify right side
    21,243.42x = 346,304,792.36
  5. Step 5: Solve for x
    x = 346,304,792.36/21,243.42
  6. Step 6: Final answer
    x = 16,301.74

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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.