Home / 22,275.14-30,742.44-13,781.30

Finding the Fourth Proportional to 22,275.14, 30,742.44 and 13,781.30

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Solution

The fourth proportional to 22,275.14, 30,742.44 and 13,781.30 is: 19,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.14 : 30,742.44 = 13,781.30 : x
  2. Step 2: Convert to fraction form
    22,275.14/30,742.44 = 13,781.30/x
  3. Step 3: Cross multiply
    22,275.14x = 30,742.44 × 13,781.30
  4. Step 4: Simplify right side
    22,275.14x = 423,670,788.37
  5. Step 5: Solve for x
    x = 423,670,788.37/22,275.14
  6. Step 6: Final answer
    x = 19,019.89

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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.