Home / 22,698.36-31,322.70-13,137.75

Finding the Fourth Proportional to 22,698.36, 31,322.70 and 13,137.75

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Solution

The fourth proportional to 22,698.36, 31,322.70 and 13,137.75 is: 18,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,698.36 : 31,322.70 = 13,137.75 : x
  2. Step 2: Convert to fraction form
    22,698.36/31,322.70 = 13,137.75/x
  3. Step 3: Cross multiply
    22,698.36x = 31,322.70 × 13,137.75
  4. Step 4: Simplify right side
    22,698.36x = 411,509,801.93
  5. Step 5: Solve for x
    x = 411,509,801.93/22,698.36
  6. Step 6: Final answer
    x = 18,129.49

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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.