Home / 22,812.09-31,502.42-21,569.68

Finding the Fourth Proportional to 22,812.09, 31,502.42 and 21,569.68

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Solution

The fourth proportional to 22,812.09, 31,502.42 and 21,569.68 is: 29,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.09 : 31,502.42 = 21,569.68 : x
  2. Step 2: Convert to fraction form
    22,812.09/31,502.42 = 21,569.68/x
  3. Step 3: Cross multiply
    22,812.09x = 31,502.42 × 21,569.68
  4. Step 4: Simplify right side
    22,812.09x = 679,497,118.63
  5. Step 5: Solve for x
    x = 679,497,118.63/22,812.09
  6. Step 6: Final answer
    x = 29,786.71

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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.