Home / 20,109.82-27,743.96-14,817.28

Finding the Fourth Proportional to 20,109.82, 27,743.96 and 14,817.28

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Solution

The fourth proportional to 20,109.82, 27,743.96 and 14,817.28 is: 20,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.82 : 27,743.96 = 14,817.28 : x
  2. Step 2: Convert to fraction form
    20,109.82/27,743.96 = 14,817.28/x
  3. Step 3: Cross multiply
    20,109.82x = 27,743.96 × 14,817.28
  4. Step 4: Simplify right side
    20,109.82x = 411,090,023.63
  5. Step 5: Solve for x
    x = 411,090,023.63/20,109.82
  6. Step 6: Final answer
    x = 20,442.25

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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.