Home / 22,859.22-31,542.85-13,785.05

Finding the Fourth Proportional to 22,859.22, 31,542.85 and 13,785.05

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Solution

The fourth proportional to 22,859.22, 31,542.85 and 13,785.05 is: 19,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,859.22 : 31,542.85 = 13,785.05 : x
  2. Step 2: Convert to fraction form
    22,859.22/31,542.85 = 13,785.05/x
  3. Step 3: Cross multiply
    22,859.22x = 31,542.85 × 13,785.05
  4. Step 4: Simplify right side
    22,859.22x = 434,819,860.48
  5. Step 5: Solve for x
    x = 434,819,860.48/22,859.22
  6. Step 6: Final answer
    x = 19,021.64

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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.