Home / 14,929.21-20,609.94-14,115.16

Finding the Fourth Proportional to 14,929.21, 20,609.94 and 14,115.16

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Solution

The fourth proportional to 14,929.21, 20,609.94 and 14,115.16 is: 19,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929.21 : 20,609.94 = 14,115.16 : x
  2. Step 2: Convert to fraction form
    14,929.21/20,609.94 = 14,115.16/x
  3. Step 3: Cross multiply
    14,929.21x = 20,609.94 × 14,115.16
  4. Step 4: Simplify right side
    14,929.21x = 290,912,679.38
  5. Step 5: Solve for x
    x = 290,912,679.38/14,929.21
  6. Step 6: Final answer
    x = 19,486.14

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Double scale
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Similar ratio
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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.