Home / 22,579.68-31,161.60-13,629.36

Finding the Fourth Proportional to 22,579.68, 31,161.60 and 13,629.36

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Solution

The fourth proportional to 22,579.68, 31,161.60 and 13,629.36 is: 18,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.68 : 31,161.60 = 13,629.36 : x
  2. Step 2: Convert to fraction form
    22,579.68/31,161.60 = 13,629.36/x
  3. Step 3: Cross multiply
    22,579.68x = 31,161.60 × 13,629.36
  4. Step 4: Simplify right side
    22,579.68x = 424,712,664.58
  5. Step 5: Solve for x
    x = 424,712,664.58/22,579.68
  6. Step 6: Final answer
    x = 18,809.51

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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.