Home / 22,109.70-30,506.44-12,678.26

Finding the Fourth Proportional to 22,109.70, 30,506.44 and 12,678.26

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Solution

The fourth proportional to 22,109.70, 30,506.44 and 12,678.26 is: 17,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.70 : 30,506.44 = 12,678.26 : x
  2. Step 2: Convert to fraction form
    22,109.70/30,506.44 = 12,678.26/x
  3. Step 3: Cross multiply
    22,109.70x = 30,506.44 × 12,678.26
  4. Step 4: Simplify right side
    22,109.70x = 386,768,577.99
  5. Step 5: Solve for x
    x = 386,768,577.99/22,109.70
  6. Step 6: Final answer
    x = 17,493.16

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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.