Home / 19,954.40-29,892.72-12,143.84

Finding the Fourth Proportional to 19,954.40, 29,892.72 and 12,143.84

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Solution

The fourth proportional to 19,954.40, 29,892.72 and 12,143.84 is: 18,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.40 : 29,892.72 = 12,143.84 : x
  2. Step 2: Convert to fraction form
    19,954.40/29,892.72 = 12,143.84/x
  3. Step 3: Cross multiply
    19,954.40x = 29,892.72 × 12,143.84
  4. Step 4: Simplify right side
    19,954.40x = 363,012,408.84
  5. Step 5: Solve for x
    x = 363,012,408.84/19,954.40
  6. Step 6: Final answer
    x = 18,192.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.