Home / 22,539.32-31,106.97-13,107.88

Finding the Fourth Proportional to 22,539.32, 31,106.97 and 13,107.88

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Solution

The fourth proportional to 22,539.32, 31,106.97 and 13,107.88 is: 18,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,539.32 : 31,106.97 = 13,107.88 : x
  2. Step 2: Convert to fraction form
    22,539.32/31,106.97 = 13,107.88/x
  3. Step 3: Cross multiply
    22,539.32x = 31,106.97 × 13,107.88
  4. Step 4: Simplify right side
    22,539.32x = 407,746,429.92
  5. Step 5: Solve for x
    x = 407,746,429.92/22,539.32
  6. Step 6: Final answer
    x = 18,090.45

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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.