Home / 22,790.36-31,452.27-12,720.77

Finding the Fourth Proportional to 22,790.36, 31,452.27 and 12,720.77

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Solution

The fourth proportional to 22,790.36, 31,452.27 and 12,720.77 is: 17,555.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,790.36 : 31,452.27 = 12,720.77 : x
  2. Step 2: Convert to fraction form
    22,790.36/31,452.27 = 12,720.77/x
  3. Step 3: Cross multiply
    22,790.36x = 31,452.27 × 12,720.77
  4. Step 4: Simplify right side
    22,790.36x = 400,096,935.39
  5. Step 5: Solve for x
    x = 400,096,935.39/22,790.36
  6. Step 6: Final answer
    x = 17,555.54

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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.