Home / 22,245.65-30,695.96-13,291.25

Finding the Fourth Proportional to 22,245.65, 30,695.96 and 13,291.25

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Solution

The fourth proportional to 22,245.65, 30,695.96 and 13,291.25 is: 18,340.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.65 : 30,695.96 = 13,291.25 : x
  2. Step 2: Convert to fraction form
    22,245.65/30,695.96 = 13,291.25/x
  3. Step 3: Cross multiply
    22,245.65x = 30,695.96 × 13,291.25
  4. Step 4: Simplify right side
    22,245.65x = 407,987,788.32
  5. Step 5: Solve for x
    x = 407,987,788.32/22,245.65
  6. Step 6: Final answer
    x = 18,340.12

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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.